---May I ask a question after class, Sir?
--- , but not during my lunch break.
A. I’m sorry B. Anytime
C. Certainly D. Go ahead
---May I ask a question after class, Sir?
--- , but not during my lunch break.
A. I’m sorry B. Anytime
C. Certainly D. Go ahead
C
解析：本题考查交际用语。根据上下文表示 “当然可以，不过不能在午饭期间”。