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Mary was caught in a traffic jam and by the time she arrived

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Mary was caught in a traffic jam and by the time she arrived at the airport her father’s plane_______.
A.took off
B.had already taken off
C.was take off
D.had already been taken off
Mary was caught in a traffic jam and by the time she arrived
B

by the time与she arrived这一过去的动作连用,表示到过去那时为止已经完成的动作,用过去完成时。take off指“起飞”,没有被动语态。