(单选题)
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 resident had been permitted
参考答案:C
参考解析:
考查only+状语位于句首的倒装和过去将来时。句意:据宣称只有当火势得到控制的时候,居民们才可以返回家中。only+状语从句放在句首时,主句用部分倒装。因为是火势得到控制才能回家,时态应用过去将来时。故选C。
知识点:
