题目内容

【题目】----Why did the bridge fall down ?

----We are not sure. The ______ is still being searched.

A. excuse B. cause C. result D. thought

【答案】B

【解析】

句意:——为什么这座桥倒塌了?——我们不确定原因仍然在调查中。A. excuse借口,理由;B. cause原因;C. result结果;D. thought想法;根据Why did the bridge fall down ?可知是原因;故选B

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