Question

【题目】Sally took a photo of her friends while they________computer games．

A. play

B. are playing

C. have played

D. were playing

Answer 1

【答案】D

【解析】

试题句意：当他们玩电脑游戏时，Sally给她的朋友拍了照。句中用过去进行时，表示过去的某个时间正在发生的动作；故选D。A 一般现在时；B 现在进行时；C 现在完成时。