来自唐天国的问题
【HaveyouevervisitedtheWaterCube?Yes.WhenIservedasavolunteerinBeijing,IittwiceA.havevisitedB.visitedC.hadvisitedD.hadbeenvisiting为什么不选C】
HaveyouevervisitedtheWaterCube?Yes.WhenIservedasavolunteerinBeijing,Iittwice
A.havevisited
B.visited
C.hadvisited
D.hadbeenvisiting
为什么不选C
1回答
2020-11-1506:54