---- What was wrong with you yesterday evening?---- I ____ my homework when the light went off ...

----Whatwaswrongwithyouyesterdayevening?----I____myhomeworkwhenthelightwentoffsuddenl... ---- What was wrong with you yesterday evening? ---- I ____ my homework when the light went off suddenly. A．doing B．was doing C．did D．have done 展开

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#热议# 普通体检能查出癌症吗？

弭基皋依云
2020-02-17 · TA获得超过4194个赞

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B
考查情景交际。“昨晚你怎么了？”“我正在做作业时，突然断电了。”过去某时刻正在发生的事情用过去进行时。故选B。

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