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:         小题1:            ?
B: Yes, please. I need a sweater for school.
A:         小题2:           ?
B: Green.
A: How about this one?
B: It looks nice,         小题3:          ?
A: Twenty dollars.
B: Well,       小题4:             .
A: Here you are.
B: Thank you.
A:      小题5:   .