By time they got to the airport, the plane & Wap版

试题详情及答案解析

By time they got to the airport, the plane .

A．took off	B．has taken off
C．had taken off	D．was talking off

答案：C

试题分析：句意：当他们到达机场时，飞机已经起飞。根据时间状语By time they got to the airport可知主句动作发生在前，从句动作发生在后，而从句用的是一般过去时，所以主句该用过去完成时。因此选C。
考点：考查动词时态。