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题目
____ an answer,I decided to write him again.
A.Not to have received
B.Not being received
C.Having not received
D.Not having received

提问时间:2020-07-13

答案
not having done是非谓语动词中正确的用法,用作状语比较多,如
Not having heard from him,she decided to write another letter
have not done 是谓语动词完成时的否定形式,一般没有having not done
所以排除C
此句前后是主动关系主语都是I 所以排除B
根据时态来说 我是在没有接到回复之后再写信故用完成时态 所以排除A
综上,此题答案为D
如果还有哪里不清楚我愿意继续解答
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