______yourletter,Iwouldhavestarted

发布时间：2020-07-10 13:47:46

______ your letter, I would have started off two days ago.













A.If I received












B.Should I receive











C.If I could have received











D.Had I received

网友回答

D解析首先从主句的谓语动词可推断出从句表达的是过去的情况，A、B、C三项都不符合搭配要求，D项是省略了if出现的部分倒装形式。
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