The manager, along with her assistants, _______ attending the conference.

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

A

are

B

were

C

is

D

have been

Correct Answer: C

Choice C is the best answer. "Along with" doesn't change subject number.

Choice A is incorrect because "are" is plural. Choice B is incorrect because "were" is plural. Choice D is incorrect because "have been" is plural.