31.By the time we _the airport, the plane_.A．arrived at; had taken offB．had got to; took off

题目简介

31.By the time we _____the airport, the plane_____.A．arrived at; had taken offB．had got to; took off

31.By the time we _____the airport, the plane_____.

A．arrived at; had taken off	B．had got to; took off
C．got to; had taken away	D．arrived at ; had taken away

题型：单选题难度：偏易来源：不详

考查时态。By the time主句用完成时态。根据句意我们到达机场的时候，飞机已经起飞了。可知从句用一般过去时，主句用过去完成时，选A。