Question

【题目】The old man ______ along the road when the truck suddenly knocked him off.

A.walksB.walkedC.was walkingD.had walked

Answer 1

【答案】C

【解析】

句意：老人在路上走着，卡车突然把他撞倒了。

考查动词时态。A. walks一般现在时；B. walked一般过去时；C. was walking过去进行时；D. had walked过去完成时。when引导的时间状语从句，从句是一般过去时，主句是过去进行时；表示当从句的动作正在发生时，主句的动作发生了。故选C。