题目内容
【题目】—What was Tom doing _______ it was raining?
—He was doing his homework in the bedroom.
A. since B. while C. for D. who
【答案】B
【解析】
试题分析:句意:---当下雨的时候汤姆正在做什么?---- 他正在卧室里做作业。since 自从; B. While当……时候;C. for 为了;D. Who谁。结合句意,故选B
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