The scientist's research, which is focused on the impact of climate change on coral reefs, ______ a variety of complex factors.
SAT · English · previous-year question
- A.involvescorrect
- B.involving
- C.involved
- D.to involve
Answer
A. involves
Explanation
The correct answer is "involves." The sentence requires a finite verb to modify the noun phrase "the scientist’s research." The participle "involving" would be incorrect because it's a nonfinite verb. The past participle "involved" would be incorrect because it suggests the action has already been completed. "To involve" would be incorrect because it's a nonfinite to-infinitive. Of these choices, only the present tense verb "involves" makes sense in the context.
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