—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

---May I smoke here, please?

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

1. A.
   can
2. B.
   can’t
3. C.
   may
4. D.
   may not

—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