Question

【题目】We on the playground when it began to rain yesterday afternoon.

A.runB.ranC.are runningD.were running

Answer 1

【答案】D

【解析】

句意：当昨天下午开始下雨时，我们正在操场上跑步。

考查时态。A. run跑，一般现在时；B. ran跑，一般过去时；C. are running跑，现在进行时；D. were running跑，过去进行时。根据时间状语when it began to rain yesterday afternoon，可知动作发生在过去的某个时刻，主句动词应该用过去进行时，故选D。