—May I smoke here please?—I am afraid you This is a non-smoking area．A. canB. can’tC. may

问题补充：

—May I smoke here，please?

—I am afraid you ．This is a non-smoking area．

A. can

B. can’t

C. may

D. may not

答案：

A. can

(答案→)B. can’t

C. may

D. may not

解析：本题考查情态动词。由This is a non-smoking area．“这是无烟区”可知“不能”在这里吸烟，故答案选B。