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I am sorry to have you so long. A. waited B. to wait C. waiting D. to be waiting

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I am sorry to have you so long. A. waited B. to wait C. waiting D. to be waiting

I am sorry to have you _________ so long.

A. waited   B. to wait   C. waiting   D. to be waiting

试题答案

C

标签：haveyoutoamsorry

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