根据上下文和你的实际情况把下面的对话补充完整。

A: . ___________________ ?
B: Yes, please. I need a sweater for school.
A: OK. . _____________________?
B: Blue.
A: . ___________________?
B: It looks nice. . ___________________?
A: Nine dollars.
B: I’ll take it.
A: Here you are.
B:. ______________.
A: You’re welcome.