F: Service is really slow here. I've been trying to get the waiter's attention for 10 minutes. ,M: I hope he can serve us soon. I'm starving and I have a class at 2 o'clock.
(A) F: It is 3 now. We should leave this bookshop. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: Yes. There are too many people in this restaurant. (D) F: Do you remember you have a class at 3 here in language center?
C