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Noonecanrecallanydetailabouttheaccident.Itisatleasttwentyyearssinceit.选项:a、hadtakenplaceb、wastakenplacec、tookplaced、wastakingplace

题目详情
No one can recall any detail about the accident.It is at least twenty years since it __________.
选项:
a、had taken place
b、was taken place
c、took place
d、was taking place
▼优质解答
答案和解析
A
要用过去完成时