— Can I smoke in this hall?
— No, you can’t. If you , please go to the smoking room.
A. should
B. might
C. can
D. must
网友回答
A. should
B. might
C. can
(答案→)D. must
解析：本题是结合省略句来考查情态动词的用法。根据句意“如果你非要抽烟的话，请到吸烟室去抽。”可知，本题最佳答案为D。该从句补全为If you must smoke, must意为“偏要，硬要”。