Must i return the books before Wednesday?No.You ____return them next week.

问题描述:

Must i return the books before Wednesday?No.You ____return them next week.
A.mustn't B.needn't C.can D.can't

C...
我一定要礼拜三前还书吗?
不,你可以下个礼拜再还.
这几个选项,只能选C 了.