He was caught in a traffic jam and by the time he reached th

He was caught in a traffic jam and by the time he reached the airport his friend's plane ( ).
A.has alread taken off B.had already taken off C.has been taken off
D.had been taken off

88537821 1年前已收到3个回答举报

如影随性幼苗

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答案选B.
解析：由句中的was caught可知该句为一般过去时,结合语境,可知当他赶到机场的时候,朋友的飞机已经起飞了,因此应该为过去完成时态,排除选项A和C.
take off表飞机起飞,不存在被动语态,因此排除选项D,所以选择B.

1年前

sintra007 幼苗

共回答了250个问题举报

He was caught in a traffic jam and by the time he reached the airport his friend's plane (B

take off没有被动，，起飞

希望对你有帮助，没有清楚采纳.

1年前

tina0410 幼苗

共回答了18个问题举报

这里考察的是“by the time”的用法，当这个短语后面接的是过去时，那么动词要用过去完成时，老师应该讲过。
再者，take off是没有被动式的，所以选B

1年前

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