根据情景完成对话
Rosa: Do you have black bags?
Mr.Smith: No, 1 we have blue bags. Do you like these?
Rosa: 2 ,I do. How much are they?
Mr.Smith: They're thirty 3 .
Rosa: Oh, that's too dear. How about twenty dollars?
Mr.Smith: That's OK.
Rosa: 4 the money.
Mr.Smith: 5 you.
