补全对话。 A: Hello! May I speak to Miss Zhao? B: 1 ! (A moment later) I'm sorry, 2 . Could I take a message? A: Certainly. 3 . I want to speak to her about my son David Smith. 4 . I'm afraid he isn't able to go to school today. B: 5 . I hope he'll be all right very soon. A: 6 ! Could I leave my telephone number to you? B: OK. 7 ! I'll go and get a pen and a piece of paper. OK! Please give me your phone number. A: 3579860. That's my office telephone number. My name is Peter Smith. B: All right. I'll ask her to call you as soon as she is back. A: 8 . Thank you very much. Goodbye! B: Goodbye! A. That's very kind of you. B. she isn't here right now. C. I'm sorry to hear that. D. Hold on for a moment please. E. That'll be fine. F. He has got a bad cold. G. Thank you. H. Wait a moment, please. 1._____ 2._____ 3._____ 4._____ 5._____ 6._____ 7._____ 8._____