题目内容：

阅读下面对话，从方框内7个选项中选择5个恰当的句子完成此对话，并把答题卡上对应题目的答案标号涂黑。

 

A. What about this one?

B. How much is it?

C. What colour do you want?

D. Can I help you?

E. You are welcome.

F. Oh, I like this one.

G. What size do you want?

A: 1.

B: Yes, please. I want a hat for my son.

A: For your son? 2.

B: I like the blue one.

A: 3.

B: It looks nice. 4.

A: Fifty yuan.

B: OK. I’ll take it. Thank you.

A: 5.