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There was a lot of fun at yesterday's party.You_come,but why didn't you?A.must have B.should C.need have D.ought to have我选的是B不理解为什么用'have come'这个结构,

分类: 作业答案 • 2022-01-02 15:32:29
问题描述：

There was a lot of fun at yesterday's party.You_come,but why didn't you?
A.must have B.should C.need have D.ought to have
我选的是B
不理解为什么用'have come'这个结构,

答

因为是昨天发生的事,是过去时了,ought to表假设,没有发生的情况,意思是你本该来的（但是没来）对过去情况的假设,用have

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