补全对话。
Susan: Hello. 1_____ Kate?
Mike: Sorry. She isn't in right now. Is that Susan speaking?
Susan: Yes. Who's that?
Mike: This is Mike. 2_____?
Susan: Fine, thanks. Can I leave a message?
Mike: Of course, 3_____, please. I'll go and get a pen. (Soon Mike returns.)
Mike: OK, please.
Susan: I'd like to ask her if she will go to the English Festival next week.
Will you please tell her to call me back when she returns?
Mike: No problem. 4_____?
Susan: It's 78340631.
Mike: OK, bye-bye.
Susan: Thanks. 5_____.
