F: I like this textbook, but the cover is damaged. Do you have any other copies? ,M: If that is the only copy on the shelf, I'll give you a discount.
(A) F: You can borrow English books here. (B) F: Miss Wang is coming. (C) F: I’m sorry, I don’t understand. Could you say it again? (D) F:  I like this textbook much better.
D