------What kind of house do you want to have? Something big ? ------Well, it _______ be big.—That’s not important.
#78187
A
mustn’t
B
needn’t
C
can’t
D
won’t
推荐题目
I was really anxious about you. You____ home without a word.
#62986
A
mustn’t leave
B
shouldn’t have left
C
couldn’t have left
D
needn’t leave
Tom, you ________ leave all your clothes on the floor like this next time. 
#63404
A
mustn’t
B
wouldn’t
C
needn’t
D
may not