—May I smoke here? —No , you _____. This
问题:
—May I smoke here?
—No , you _____. This is a no-smoking room. [ ]
A. needn't
B. couldn't
C. mustn't
D. won't
—May I smoke here?
—No , you _____. This is a no-smoking room. [ ]
A. needn't
B. couldn't
C. mustn't
D. won't