It was announced that only when the fire was under control would the residents be permitted ______ t...
2022-10-03 16:50:29 46次 黑龙江省2016-2017学年高一6月月考英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It was announced that only when the fire was under control would the residents be permitted ______ to their homes.
A. return B. returning
C. to return D. returned
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