---I want to know if I can smoke here?---No, you _________. Could you see the sign “NO SMOKING” there? 
#75545
A
needn’t
B
couldn’t
C
won’t
D
mustn’t
推荐题目
He ________ if he works hard for the people.
#62513
A
shall praise
B
shall be praised
C
will praise
D
will be praised
—Must I go there right now, mum?—No, you ____. You can go there tomorrow.
#75563
A
shouldn’t
B
can’t
C
mustn’t
D
needn’t
–– ________ I come back before 6 o’clock?–– No, you _______ . But you ______ be back later than 7 o’clock.
#75632
A
Need; must; must
B
May; mustn’t; can’t
C
Can; can’t; can’t
D
Must; needn’t; can’t