题目内容

【题目】Tom was cleaning the room while Jack _____TV.

A. was watching B. is watching C. watches D. watched

【答案】A

【解析】句意:当杰克在看电视的时候,汤姆在打扫房间。while---时候(通常和延续性动词连用,用于进行时态),根据was cleaning可知用过去进行时态;故选A

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