补全对话阅读对话，从每题四个选项中，选出一个最佳答案完成对话。
A：【1】
B: Yes, please.I need a sweater.
A: What color do you want?
B：Blue.
A：Here you are.
B：How much is it?
A：Twenty dollars.
B：I'll takeit．
A：【2】
B:I also want some socks.
A： 【3】   ．
B: Oh,I like them .How much are they?
A： 【4】  ．
B: Great. I'll take them.
A：Here you are.
B：Thanks very much.
A：【5】 ．

A．Thank you. B．How are you? C．Can l help you? D．Nice to meet you!

A．When is it? B．Is that all? C．Goodbye. D．What about you?

A．What color do you want? B．How about these white socks? C．How much do you need?. D．They are good socks.

A．Let's have a look. B．They are yellow and white. C．They are only 5 dollars. D．They are small.

A．Thank you. B．See you. C．Here you are. D．You are welcome.