M: What did you do with your computer? ,F: Nothing, but it wouldn't work. ,M: I'm afraid we don't have anymore of these models. You can get a refund with your receipt.
(A) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) F: Because I'm in the computer lab, so you have these models, right? (C) F: Since I'm in the computer store and you don't have these models, why can't you give me a refund? (D) F: You mean that although I'm in the computer store, you don't have these models, do you?
D