Set 15: Boundaries (Advanced)
Explanation
PASSAGE
The mayor _______ popular for her infrastructure improvements, won reelection easily.
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. 'Already popular for her infrastructure improvements' is an interrupter. Interrupters need commas on both sides (closing comma is already there after 'improvements'). 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:
• "interrupter phrase"
• "comma before to match comma after"
Why others are wrong: A (Missing opening comma for interrupter phrase.), B (Semicolon would create a fragment.), C (Colon is grammatically incorrect here.).
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