Question

【题目】The kids ________ in the garden when it suddenly began to rain.

A.playB.playedC.are playingD.were playing

Answer 1

【答案】D

【解析】

句意：孩子们正在花园里玩，突然下起雨来。

A. play动词原形；B. played过去式或过去分词；C. are playing现在进行时态形式；D. were playing过去进行时态形式。根据when it suddenly began to rain.可知，此空应填过去进行时态形式。结构是“主语+was/were+现在分词”，故填were playing，故选D。