SAT Reading & Writing · Boundaries

The committee's final report, ______ took nearly eighteen months to complete, recommended sweeping changes to the agency's inspection…

The committee's final report, ______ took nearly eighteen months to complete, recommended sweeping changes to the agency's inspection procedures.

Which choice completes the text so that it conforms to the conventions of Standard English?

Answer and explanation

Answer: A: which

The phrase "took nearly eighteen months to complete" is a supplement: it adds extra information about the report without narrowing down which report is meant, since "the committee's final report" already identifies it specifically. Supplements introduced this way take which, not that, which conventionally signals restrictive information needed to identify the noun. It would create a run-on, since the sentence already has commas suggesting a supplement is intended, and a bare pronoun cannot open a supplement clause this way. And it incorrectly treats the clause as a second independent statement joined by a coordinator, but the surrounding commas signal a single interruption, not two joined sentences.

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