if条件句的3中状态,分别对将来现在过去进行的假设

发布网友发布时间：2022-12-03 12:58

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热心网友时间：2023-11-17 23:26

if 从句主句对过去假设 had done would\could\should\might+have done 对现在假设 did \ were would\could\should\might+ do 对将来假设 were to do would\could\should\might+ do did \ were should+do

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