将下列句子重新排列成功一段通顺的对话。

A. I don't like it. May I see that postcard, please?

B. How much is this postcard?

C. Yes, I want to buy some postcards.

D. Can I help you?

E. Sure.

F. It's two yuan.

G. I'll take six, please.

H. How about this one?

正确顺序为：