题目内容
【题目】By the time I got to the airport, the plane _________.
A. took off B. has taken off C. had taken off D. takes off
【答案】C
【解析】句意：到我到达机场的时候，飞机已经起飞了。by the time+一般过去时从句，主句用过去完成时。故选C。
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题目内容
【题目】By the time I got to the airport, the plane _________.
A. took off B. has taken off C. had taken off D. takes off
【答案】C
【解析】句意：到我到达机场的时候，飞机已经起飞了。by the time+一般过去时从句，主句用过去完成时。故选C。