. ___________ the letter, he went out to post it.A.WritingB.Being writingC.Having writtenD.Written-英

题目简介

. ___________ the letter, he went out to post it.A.WritingB.Being writingC.Having writtenD.Written-英

题目详情


.   ___________    the letter, he went out to post it.
A.WritingB.Being writingC.Having writtenD.Written
题型:单选题难度:偏易来源:不详

答案

C

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