根据上下文，把下面的对话补充完整。其中有两个为多余项。

A. Here you are. B. Can I help you? C. How much is it? D. Do you like this one? E. What can you do? F. What color does she like? G. What size does she need?

A: Welcome to Uncle John's clothes store.
B: Yes, please. My mother's birthday is coming. I want to buy a sweater for her.
A:
B: She likes green.
A:
B: Size M.
A: What about this one?
B: It looks great.
A: It is 50 dollars.
B: OK. I'll take it. And I need two pairs of black socks, too.
A: OK.
B: Thank you.
A: You're welcome.