题目内容：

从下列方框中选出正确选项，补全对话。（每小题1分，共5分）

A. How are you?

B. How much are they?

C. How much is it?

D. Can I help you?

E. What color do you want?

F. I’ll take it.

G. You’re welcome.

A:         1.            ?

B: Yes, please. I need a sweater for school.

A:         2.            ?

B: Green.

A: How about this one?

B: It looks nice,         3.          ?

A: Twenty dollars.

B: Well,        4.             .

A: Here you are.

B: Thank you.

A:       5.   .