Question

【題目】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】

試題分析：本題主要考查過(guò)去進(jìn)行時(shí)。

根據(jù)句意，薩利在她的朋友們玩電腦游戲的時(shí)候給他們拍了一張照片。表示過(guò)去正在進(jìn)行的動(dòng)作，用過(guò)去進(jìn)行時(shí) was/were + doing 的形式。又因?yàn)橹髡Z(yǔ)是 they，故 be 動(dòng)詞用 were。因此 were playing 符合題意。故正確答案為D。