根据上下文的意思，把下列对话补充完整。

A: 小题1:_____________________________?

B: Yes, please. I want a sweater for my daughter.

A: Look! Here are some sweaters for girls.

小题2:_____________________________?

B: Size M.

A: Do you like this red one?

B: Yes. My daughter likes red best.

小题3:________________________?

A: $25.

B 小题4:___________________.

Do you have any cheaper ones?

A: How about this one? It’s only$18.

B: Ok, I’ll take it. Here’s the money. 小题5:_________.

A: You’re welcome.

固定桥使用一段时间后出现咬合疼痛，最可能的原因是（）

A.基牙继发龋

B.牙周咬合创伤

C.牙本质敏感

D.邻接点恢复不良

E.早接触