请按要求填空：

A: Good morning. ____?

B: OK. I want some apples.

A: Apple? All right, here you are.

B: ____. Do you have any lemons here?

A: Yes. ____?

B: I want two kilos.

A: Sure. Here you are.

B: ____?

A: Let my see. Fifteen yuan. Here is the money.

A: Thank you.

B: ____.