填入一个适当的词补全对话，每空一词。

A: What can I do for you, madam?

B: I want some bananas.

A: Sorry, they are just out. Would you like some apples?

B: OK, I'll take apples. How much do they ? I think these six apples are 3 kilos or so.

A: Umm... You're right! Three kilos. How about having some grapes?

B: Oh, it seems that worth having a try! How much are they?

A: Well, the green ones are three yuan a kilo and the red ones are four yuan a kilo.

B: Two kilos and a of the red ones, please.

A: All right, 22 yuan in , including the apples.

B: Here's the money.

A: Thank you.