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