mother could say a word, I had rushed into the room.A. When B. And C. Before D. While

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【题目】_____mother could say a word, I had rushed into the room.

A. When B. And C. Before D. While

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【答案】C

【解析】考查连词辨析。句意：妈妈还没来得及说一句话，她就冲进了房间。A. When 当...时候 B. And 并且，和 C. Before在...之前 D. While虽然。C符合语境，故选C。