从方框中选择恰当的句子，将对话补充完整。

A. Do you want it for your teacher?

B. How much is it?

C. Can I help you?

D. What is her favourite colour?

E. Can I look at that green one?

F. What about this one?

A: Good morning. ____

B: Yes, I'd like a birthday card.

A:____     

B: No, I'd like one for my mother.

As What a good daughter! ____

B: It looks nice. But my mother doesn't like red.

A:____

B: She likes blue and green.____

A: Of course. Here you are.

B: It's nice. It's my mother's favourite. ____

A: Two yuan, please.