Despite numerous setbacks, the research team eventually succeeded _________ synthesizing the new compound.

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writing

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

A

on

B

to

C

at

D

in

Correct Answer: D

Choice D is the best answer. The verb "succeed" (meaning to accomplish a goal) is followed by "in" and a gerund (e.g., "succeeded in doing").

Choice A is incorrect because "succeed on" is not the conventional preposition. Choice B is incorrect because "succeed to" usually refers to inheritance (e.g., "succeed to the throne"). Choice C is incorrect because "succeed at" is less formal and "in" is preferred in this context.