Set 9: Boundaries (Advanced)
Explanation
PASSAGE
The documentary about climate _______ won several awards at international film festivals.
Which choice completes the text so that it conforms to the conventions of Standard English?
Detailed Answer Explanation
This question tests your understanding of sentence boundaries and punctuation. The clause 'which aired last month' is nonessential (extra information). Nonessential clauses require commas on BOTH sides. To determine the correct answer, examine where complete thoughts begin and end. Look for independent clauses that need proper separation. A period, semicolon, or appropriate conjunction can correctly join or separate these ideas. When analyzing sentence boundaries, pay attention to how ideas flow from one sentence to the next. Correct punctuation ensures clarity and prevents confusion for readers. Review the options carefully to identify which choice creates proper sentence structure.
Key Evidence:
• "which (signals nonessential clause)"
• "commas on both sides"
Why others are wrong: B (Missing both commas around nonessential clause.), C (Missing opening comma before 'which.'), A (Missing closing comma after 'month.').
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