the important documents were needed .A．Where; finding B．What; foundC．When; to findD．When; to be found 题目和参考答案——青夏教育精英家教网—

________ the important documents were needed_______.

A．Where; finding	B．What; found
C．When; to find	D．When; to be found

解析试题分析：本句可改写为：we needed finding the important documents in some places.将其变成被动语态，再就地点状语提问就得到：the important documents were needed finding in some places.----where the important documents were needed finding?由此可知选A。
考点：考查句子结构及非谓语动词的用法。

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