根据对话内容及上下文，在空白处填入适当的词，使对话意思完整。每空只填一词。
(Tom-T Lin Tao-L Miss Yang-M)
T: Good afteroon!
L: Good afternoon !
M: Good afternoon ! May I _ 1 _ you?
T:_ 2 you 3 a book on Chinese history?
M: Let me see. Ah, here it is.
T: Thank you. How 4 you, Lin Tao?
L: Oh, I want to _ 5 a book on football.
M: Oh, you're lucky. We've just got a new book on football. I think you'll be 6 with it.
L: Thank you very much!
T: How long may I 7 the book?
M: Two weeks.
L: Can I keep it a little longer?
M: Yes, you can. But you'll have to come and renew (续借) it if you 8 finish it in time.
T: Must I_ 9 the book back for that?
M: Yes, you must. And you mustn't lend it to 10 .
T: All right, we won't.