问题:
While the police have already done a lot of investigation, much evidence ___ __.
A.is remaining to be confirmed
B.remained to be confirmed
C.is remained to be confirmed
D.remains to be confirmed
While the police have already done a lot of investigation, much evidence ___ __.
A.is remaining to be confirmed | B.remained to be confirmed |
C.is remained to be confirmed | D.remains to be confirmed |
参考答案: