补全对话。
A: 1._____can I do for you?
B: I 2._____ a bag of sports.
A: We have bags 3._____ all colors. They are on 4._____ now.
B: Oh, that's great.
A: 5._____ 6._____ do you want?
B: Green.
A: Let 7._____ have a look. What 8._____ this one?
B: It's too big. Do you have a 9._____ one?
A: Yes. How about this green one?
B: It is very nice. I'll 10._____ it. 11._____ 12._____ is it?
A: Twenty dollars.
B: 13._____ is the money.
A: Thank you.
B: You're 14._____.
