M: Hello, do you have the best of Mozart? ,F: Um, sorry, we've just sold out, but we can order one for you, if you give us your number, we'll call you when the CD arrives.
(A) M: Sure, thank you for being so helpful! (B) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) M: It's so generous of you to give me the CD for free. (D) M: You are so helpful in finding me the Mozart book.
A