—Must I come back before supper, mum?—No, you .
#76497
A
can’t
B
mustn’t
C
don’t
D
needn’t
推荐题目
You be hungry after the long walk．Help yourself to some cakes．
#76341
A
can’t
B
shouldn’t
C
need
D
must
I’m sorry, Bill. I _________ the book to you last week, but I was so busy that I forgot to do so.
#63435
A
must have returned
B
could return
C
should have returned
D
might return
－May we start the meeting now?－No, we________ . We__________ to start until the manager comes.
#76883
A
mustn’t; are allowed
B
don’t have to; are supposed
C
needn’t; aren’t allowed
D
can’t; aren’t supposed