一道很简单的英语题,快～在线等

一道很简单的英语题,快～在线等
根据对话内容,用适当的句子补全对话：
A:－
B:i'd like some apples and one melon.
A:－
B:i want two kilos of apples.
A:anything else?
B:no,-
-are these fruits
Afour yuan for one kilo of apples and ten yuan for the melon.
B:－eighteen yuan in all .
A:goodbye.
B:bye-bye.