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问道英语语法的问题,theproblemremaimedunsloved.((答案选A,我选B?)A.NothavingbeendiscussedB.HavingnotbeendiscussedC.NothavingdiscussedD.Havingnotdiscussed

题目详情
问道英语语法的问题
_____,the problem remaimed unsloved.((答案选A,我选B?)
A.Not having been discussed
B.Having not been discussed
C.Not having discussed
D.Having not discussed
▼优质解答
答案和解析
A正确,ING分词做状语,否定词要放在分词的前面.查看非谓语动词的用法.