Set 13: Boundaries (Advanced)
Explanation
PASSAGE
The number of students enrolled in online _______ increased dramatically over the past decade.
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 number' is always singular (unlike 'a number,' which is plural). Use singular 'has.' 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:
• "The number (always singular)"
Why others are wrong: D ('Have' is plural; 'the number' takes singular.), A (Comma separates subject from verb incorrectly AND 'have' is plural.), B (Semicolon is grammatically incorrect here.).
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