Question

【题目】—Did you see Tom at the airport?

—No.His plane ________ by the time I ________ there.

A. has taken off；got B. took off；had got

C. took off；got D. had taken off；got

Answer 1

【答案】D

【解析】试题分析：句意：——你在机场看到Tom了吗？——不，当我到那儿的时候，他的飞机已飞走了。根据时间状语从句by the time---可知，本题中主句用过去完成时，从句用一般过去时。故选D。