________ the important documents were needed_______.
A．Where; finding B．What; found
C．When; to findD．When; to be found
A

試題分析：本句可改寫為：we needed finding the important documents in some places.將其變成被動(dòng)語態(tài)，再就地點(diǎn)狀語提問就得到：the important documents were needed finding in some places.----where the important documents were needed finding?由此可知選A。
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