( ) I’m sorry to keep you for a long time . A. to wait B. waiting C. wait D. waited——青夏教育精英家教网—

摘要：( ) I’m sorry to keep you for a long time . A. to wait B. waiting C. wait D. waited

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I'm sorry to keep you ________ for a long time．

A．wait

B．waited

C．waiting

D．to wait

I’m sorry to keep you __________ for such a long time!

A) wait B) waiting C) to wait D) waited

I’m very sorry to keep you _____ for a long time

A. wait B. waits C. waiting D. to wait

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