根据下面对话提供的情景，在每个空白处填入一个适当的句子，使其意义连贯、完整。
David: Hello, Office Center.
Susan: Hi, is that you, David? 1._____
David: Fine, thank you, and you? Susan, I'm so glad that you phoned. How is your study in London?
Susan: Everything is going on quite well. And how about your teaching?
David: OK. The students are very good. Oh, did I tell you about my trip to London?
Susan: Yes, 2._____
David: I'm leaving tomorrow afternoon at two.
Susan: 3._____
David: My flight number is BC 256 and I'll get to the Heathrow airport at four. Susan, 4._____
Susan: Oh, I'm afraid not. I have to bring my mother home from hospital at that time.
David: I see. It's all right. I can manage to find your place by myself.
Susan: Well, David, my friend Tom will go to meet you.
David: Oh, it's good. But I have never seen him before. 5._____
Susan: He looks very strong and tall. He has thick and brown hair. Well, he'll call you when you arrive.
I'm looking forward to seeing you.
David: Thank you, Susan. I'll see you tomorrow.
Susan: See you.
