[题目]It was announced that only when the fire was under control to return to their homes.A.the residents would be permittedB.had the residents been permittedC.would the residents be permittedD.the resi 题目和参考答案——青夏教育精英家教网—

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【题目】It was announced that only when the fire was under control __________to return to their homes.
A.the residents would be permitted
B.had the residents been permitted
C.would the residents be permitted
D.the residents had been permitted

【答案】C
【解析】句意：通报说，只有火势得到控制了居民们才被允许回家。这里It是形式主语，真正的主语是that引导的从句；that引导的主语从句中，＂only+状语从句＂位于句首，状语从句对应的主句要用倒装语序，且此处表示过去将来，故选C。

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