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If it ______for the heavy rain,we could have left for Paris yesterday.
A.were not B.had not been
为什么A不行呢?
还有选项C was not
人气:376 ℃ 时间:2019-09-19 03:37:09
解答
if引导条件状语从句,主句都是将来完成时从句肯定要用完成时.
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