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Question 1 of 50
Question 1
Easy
Passage
The two lantern makers
The account connects a circumstance with what follows. Although Mara tests translucent paper to soften the lantern lightPunctuation boundary blank: _____ the two designs produce different shadows but attract the same delighted crowd.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although Mara tests translucent paper to soften the lantern light, the two designs produce different shadows but attract the same delighted crowd.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 2 of 50
Question 2
Easy
Passage
Crosswalk redesign
The account connects a circumstance with what follows. Raised crossings slow drivers by changing the road environmentPunctuation boundary blank: _____ because the test covers only low-speed neighborhood roads.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Raised crossings slow drivers by changing the road environment because the test covers only low-speed neighborhood roads.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 3 of 50
Question 3
Easy
Passage
Exhibition sequence
The account connects a circumstance with what follows. When chronological layout shows change across timePunctuation boundary blank: _____ the hybrid layout supports both historical sequence and comparison.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “When chronological layout shows change across time, the hybrid layout supports both historical sequence and comparison.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 4 of 50
Question 4
Easy
Passage
A garden remembered
The account connects a circumstance with what follows. Nia records the garden's changing scents in a notebookPunctuation boundary blank: _____ because Nia cannot identify every plant in the old garden.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Nia records the garden's changing scents in a notebook because Nia cannot identify every plant in the old garden.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 5 of 50
Question 5
Easy
Passage
Community translation
The account connects a circumstance with what follows. Although translated notices offer written access in several languagesPunctuation boundary blank: _____ residents report fewer missed instructions when formats are combined.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although translated notices offer written access in several languages, residents report fewer missed instructions when formats are combined.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 6 of 50
Question 6
Easy
Passage
Poetry in two voices
The account connects a circumstance with what follows. Voice One describes the city through mechanical soundsPunctuation boundary blank: _____ because the poem does not declare one perspective superior.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Voice One describes the city through mechanical sounds because the poem does not declare one perspective superior.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 7 of 50
Question 7
Easy
Passage
The station clock
The account connects a circumstance with what follows. When Tomas measures his wait by the clock's slow handPunctuation boundary blank: _____ the late clock makes the wait feel longer than it is.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “When Tomas measures his wait by the clock's slow hand, the late clock makes the wait feel longer than it is.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 8 of 50
Question 8
Easy
Passage
Museum label experiment
The account connects a circumstance with what follows. Short object labels reduce the amount of text beside each objectPunctuation boundary blank: _____ because the study does not measure long-term memory.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Short object labels reduce the amount of text beside each object because the study does not measure long-term memory.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 9 of 50
Question 9
Easy
Passage
Community mural archive
The account connects a circumstance with what follows. Although planning sketches show ideas omitted from the final compositionPunctuation boundary blank: _____ the combined archive distinguishes design changes from later damage.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although planning sketches show ideas omitted from the final composition, the combined archive distinguishes design changes from later damage.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 10 of 50
Question 10
Easy
Passage
Two maps of home
The account connects a circumstance with what follows. Evelyn's map marks favorite trees and neighbors' kitchensPunctuation boundary blank: _____ because neither map alone includes every useful detail.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Evelyn's map marks favorite trees and neighbors' kitchens because neither map alone includes every useful detail.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 11 of 50
Question 11
Easy
Passage
Shared-work schedules
The account connects a circumstance with what follows. When fixed shifts make staffing levels predictablePunctuation boundary blank: _____ late arrivals decline during the trial.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “When fixed shifts make staffing levels predictable, late arrivals decline during the trial.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 12 of 50
Question 12
Easy
Passage
Accessible performance guide
The account connects a circumstance with what follows. Plain-language synopsis helps readers follow major eventsPunctuation boundary blank: _____ because the survey captures voluntary responses.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Plain-language synopsis helps readers follow major events because the survey captures voluntary responses.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 13 of 50
Question 13
Easy
Passage
The unfinished melody
The account connects a circumstance with what follows. Although Leena leaves spaces in the score for improvisationPunctuation boundary blank: _____ listeners notice the final note more strongly after the silence.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although Leena leaves spaces in the score for improvisation, listeners notice the final note more strongly after the silence.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 14 of 50
Question 14
Easy
Passage
Park-use counts
The account connects a circumstance with what follows. Ridge Park draws concentrated evening usePunctuation boundary blank: _____ because counts come from three weekdays.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Ridge Park draws concentrated evening use because counts come from three weekdays.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 15 of 50
Question 15
Easy
Passage
Moss moisture trial
The account connects a circumstance with what follows. When ridge moss loses water quickly under moving airPunctuation boundary blank: _____ hollow moss retains a larger share of its starting water.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “When ridge moss loses water quickly under moving air, hollow moss retains a larger share of its starting water.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 16 of 50
Question 16
Medium
Passage
The borrowed coat
The account connects a circumstance with what follows. Amal initially feels embarrassed by its oversized sleevesPunctuation boundary blank: _____ because the cousin does not appear in the scene.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Amal initially feels embarrassed by its oversized sleeves because the cousin does not appear in the scene.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 17 of 50
Question 17
Medium
Passage
Food-waste messages
The account connects a circumstance with what follows. Although cost-framed signs encourage diners to take only what they will eatPunctuation boundary blank: _____ waste declines under both signs, slightly more under community framing.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although cost-framed signs encourage diners to take only what they will eat, waste declines under both signs, slightly more under community framing.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 18 of 50
Question 18
Medium
Passage
Seed-coat temperature
The account connects a circumstance with what follows. Dark-coated seeds absorb more radiant heatPunctuation boundary blank: _____ because the study tests one plant variety.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Dark-coated seeds absorb more radiant heat because the study tests one plant variety.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 19 of 50
Question 19
Medium
Passage
Messages in clay
The account connects a circumstance with what follows. When Davin presses tiny wave marks into each cupPunctuation boundary blank: _____ the same marks represent craft to Davin and memory to Reya.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “When Davin presses tiny wave marks into each cup, the same marks represent craft to Davin and memory to Reya.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 20 of 50
Question 20
Medium
Passage
Cycling-route feedback
The account connects a circumstance with what follows. Online map comments identify intersections that feel unsafePunctuation boundary blank: _____ because participants are volunteers rather than a random sample.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Online map comments identify intersections that feel unsafe because participants are volunteers rather than a random sample.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 21 of 50
Question 21
Medium
Passage
Urban moth movement
The account connects a circumstance with what follows. Although continuous hedge provides uninterrupted coverPunctuation boundary blank: _____ the continuous hedge yields more endpoint detections.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although continuous hedge provides uninterrupted cover, the continuous hedge yields more endpoint detections.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 22 of 50
Question 22
Medium
Passage
A quiet election
The account connects a circumstance with what follows. Suri listens privately before proposing changesPunctuation boundary blank: _____ because the story does not declare either candidate the winner.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Suri listens privately before proposing changes because the story does not declare either candidate the winner.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 23 of 50
Question 23
Medium
Passage
School breakfast timing
The account connects a circumstance with what follows. When before-school service requires students to arrive earlyPunctuation boundary blank: _____ participation increases after the timing change.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “When before-school service requires students to arrive early, participation increases after the timing change.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 24 of 50
Question 24
Medium
Passage
Cooling roof tiles
The account connects a circumstance with what follows. Ribbed tiles create more surface exposed to passing airPunctuation boundary blank: _____ because the difference narrows as both approach room temperature.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Ribbed tiles create more surface exposed to passing air because the difference narrows as both approach room temperature.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 25 of 50
Question 25
Medium
Passage
The river postcard
The account connects a circumstance with what follows. Although the postcard contains only three short sentencesPunctuation boundary blank: _____ the limited description prompts the recipient to imagine the rest.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although the postcard contains only three short sentences, the limited description prompts the recipient to imagine the rest.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 26 of 50
Question 26
Medium
Passage
Restoring a public square
The account connects a circumstance with what follows. The fountain plan preserves a recognizable civic landmarkPunctuation boundary blank: _____ because support does not guarantee construction funding.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “The fountain plan preserves a recognizable civic landmark because support does not guarantee construction funding.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 27 of 50
Question 27
Medium
Passage
Bee learning cues
The account connects a circumstance with what follows. When color cue is recognized quickly after short trainingPunctuation boundary blank: _____ cue effectiveness depends on when memory is tested.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “When color cue is recognized quickly after short training, cue effectiveness depends on when memory is tested.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 28 of 50
Question 28
Medium
Passage
Actors and masks
The account connects a circumstance with what follows. Mei speaks more boldly while wearing the maskPunctuation boundary blank: _____ because the effect is observed only during rehearsal.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Mei speaks more boldly while wearing the mask because the effect is observed only during rehearsal.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 29 of 50
Question 29
Medium
Passage
Color in wayfinding
The account connects a circumstance with what follows. Although blue floor markings create a continuous path through corridorsPunctuation boundary blank: _____ visitors navigate fastest when continuous and numbered cues are combined.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although blue floor markings create a continuous path through corridors, visitors navigate fastest when continuous and numbered cues are combined.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 30 of 50
Question 30
Medium
Passage
Stream restoration
The account connects a circumstance with what follows. Woody barriers slow water and collect sedimentPunctuation boundary blank: _____ because the design cannot separate every interaction between treatments.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Woody barriers slow water and collect sediment because the design cannot separate every interaction between treatments.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 31 of 50
Question 31
Medium
Passage
A baker's ledger
The account connects a circumstance with what follows. When Jun uses memory rather than exact measurementsPunctuation boundary blank: _____ the erased debt matters more to Jun than the recovered payment.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “When Jun uses memory rather than exact measurements, the erased debt matters more to Jun than the recovered payment.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 32 of 50
Question 32
Medium
Passage
Ceramic surface traditions
The account connects a circumstance with what follows. River-clay bowls show fine lines pressed with woven cordPunctuation boundary blank: _____ because trade may have moved some vessels between regions.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “River-clay bowls show fine lines pressed with woven cord because trade may have moved some vessels between regions.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 33 of 50
Question 33
Medium
Passage
Night-blooming flowers
The account connects a circumstance with what follows. Although wide flowers are visited by several insect groupsPunctuation boundary blank: _____ flower shape changes visitation pattern more than total nectar use.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although wide flowers are visited by several insect groups, flower shape changes visitation pattern more than total nectar use.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 34 of 50
Question 34
Medium
Passage
Voices across a courtyard
The account connects a circumstance with what follows. Asha sends melodies through an open windowPunctuation boundary blank: _____ because neither character knows the other's name.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Asha sends melodies through an open window because neither character knows the other's name.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 35 of 50
Question 35
Medium
Passage
Captions and looking
The account connects a circumstance with what follows. When descriptive captions direct attention to details already presentPunctuation boundary blank: _____ both captions increase discussion, but of different kinds.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “When descriptive captions direct attention to details already present, both captions increase discussion, but of different kinds.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 36 of 50
Question 36
Medium
Passage
Battery storage temperature
The account connects a circumstance with what follows. Cool storage preserves more initial capacityPunctuation boundary blank: _____ because the study does not measure multiyear aging.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Cool storage preserves more initial capacity because the study does not measure multiyear aging.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 37 of 50
Question 37
Medium
Passage
The restored chair
The account connects a circumstance with what follows. Although the carved chair retains scratches made during decades of usePunctuation boundary blank: _____ the restoration makes the chair usable without erasing its history.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although the carved chair retains scratches made during decades of use, the restoration makes the chair usable without erasing its history.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 38 of 50
Question 38
Medium
Passage
Sound-map installation
The account connects a circumstance with what follows. Field recordings preserve small changes in local soundPunctuation boundary blank: _____ because the installation represents one month.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Field recordings preserve small changes in local sound because the installation represents one month.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 39 of 50
Question 39
Medium
Passage
Bird-call detection
The account connects a circumstance with what follows. When automated microphones collect sound for many hoursPunctuation boundary blank: _____ combining methods produces the longest species list.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “When automated microphones collect sound for many hours, combining methods produces the longest species list.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 40 of 50
Question 40
Medium
Passage
Market-day archives
The account connects a circumstance with what follows. Harbor tax lists record changing quantities of imported grainPunctuation boundary blank: _____ because neither record represents residents who did not trade.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Harbor tax lists record changing quantities of imported grain because neither record represents residents who did not trade.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 41 of 50
Question 41
Hard
Passage
Translation choices
The account connects a circumstance with what follows. Although version A preserves the source poem's ceremonial tonePunctuation boundary blank: _____ readers perceive the speaker differently although the core image remains.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although version A preserves the source poem's ceremonial tone, readers perceive the speaker differently although the core image remains.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 42 of 50
Question 42
Hard
Passage
Salt-tolerant seedlings
The account connects a circumstance with what follows. Line K maintains leaf color under moderate saltPunctuation boundary blank: _____ because the trial occurs in pots rather than field plots.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Line K maintains leaf color under moderate salt because the trial occurs in pots rather than field plots.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 43 of 50
Question 43
Hard
Passage
Neighborhood shade survey
The account connects a circumstance with what follows. When Block Alder has mature trees along most sidewalksPunctuation boundary blank: _____ Block Alder remains cooler, though both blocks reduce direct sun.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “When Block Alder has mature trees along most sidewalks, Block Alder remains cooler, though both blocks reduce direct sun.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 44 of 50
Question 44
Hard
Passage
Poster hierarchy
The account connects a circumstance with what follows. Large date text lets viewers identify timing from a distancePunctuation boundary blank: _____ because the test uses a single poster design.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Large date text lets viewers identify timing from a distance because the test uses a single poster design.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 45 of 50
Question 45
Hard
Passage
Reef-sound playback
The account connects a circumstance with what follows. Although healthy-reef sounds include clicks and fish callsPunctuation boundary blank: _____ more fish arrive near healthy-reef playback.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although healthy-reef sounds include clicks and fish calls, more fish arrive near healthy-reef playback.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 46 of 50
Question 46
Hard
Passage
Library access pilot
The account connects a circumstance with what follows. Mobile library stops bring books into neighborhoodsPunctuation boundary blank: _____ because the pilot is too short to establish a permanent trend.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Mobile library stops bring books into neighborhoods because the pilot is too short to establish a permanent trend.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 47 of 50
Question 47
Hard
Passage
Dance notation workshop
The account connects a circumstance with what follows. When symbolic notation makes timing patterns easy to compare on a pagePunctuation boundary blank: _____ using both records reduces errors in reconstructing the sequence.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “When symbolic notation makes timing patterns easy to compare on a page, using both records reduces errors in reconstructing the sequence.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 48 of 50
Question 48
Hard
Passage
Leaf-surface droplets
The account connects a circumstance with what follows. Waxed leaves cause water to form round dropletsPunctuation boundary blank: _____ because artificial leaves simplify natural variation.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “Waxed leaves cause water to form round droplets because artificial leaves simplify natural variation.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Question 49 of 50
Question 49
Hard
Passage
Two oral histories
The account connects a circumstance with what follows. Although Laleh's interview emphasizes workers' childcare networkPunctuation boundary blank: _____ the interviews broaden the strike history beyond speeches by leaders.
Correct answer,
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
Comma
Sentence map
DC, IC
Left unit
Dependent Clause
Right unit
Independent Clause (independent)
Rule
A comma closes the introductory dependent clause before the independent main clause.
Why this choice?
Correct. The comma correctly separates the introductory dependent clause from the main clause.
Why this choice?
Incorrect. A semicolon cannot follow an introductory dependent clause that cannot stand alone.
Why this choice?
Incorrect. A period would strand the introductory dependent clause as a fragment.
Why this choice?
Incorrect. The introductory dependent clause requires a comma before the main clause.
Explanation
A comma closes the introductory dependent clause before the independent main clause. The conventionally completed text reads: “Although Laleh's interview emphasizes workers' childcare network, the interviews broaden the strike history beyond speeches by leaders.”
Sentence map
DC, IC
Units around the blank
dependent clause → independent clause
Boundary decision
A comma closes the introductory dependent clause before the independent main clause.
Question 50 of 50
Question 50
Hard
Passage
Architectural reuse
The account connects a circumstance with what follows. The old depot shell keeps the building's long arched openingsPunctuation boundary blank: _____ because some original interior walls were already missing.
Correct answer[no punctuation]
Boundary structure audit
Official domain
Standard English Conventions
Official skill
Boundaries
Topic
9-1 · Independent vs Dependent Clauses
Boundary type
Dependent Main Clause
Required punctuation
No Punctuation
Sentence map
IC + DC
Left unit
Independent Clause (independent)
Right unit
Dependent Clause
Rule
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
Why this choice?
Incorrect. A period would leave the because-clause as a fragment.
Why this choice?
Correct. No punctuation belongs between the main clause and its essential following because-clause.
Why this choice?
Incorrect. The essential following because-clause is not introductory or supplementary.
Why this choice?
Incorrect. The material after the semicolon is dependent, not an independent clause.
Explanation
A dependent because-clause that follows and completes the main clause remains attached without punctuation. The conventionally completed text reads: “The old depot shell keeps the building's long arched openings because some original interior walls were already missing.”
Sentence map
IC + DC
Units around the blank
independent clause → dependent clause
Boundary decision
A dependent because-clause that follows and completes the main clause remains attached without punctuation.
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