. You _____ return the book now. You can
题型:选择题
问题:
. You _____ return the book now. You can keep it till next week if you like.
A.can’t
B.mustn’t
C.needn’t
D.may not
. You _____ return the book now. You can keep it till next week if you like.
A.can’t
B.mustn’t
C.needn’t
D.may not