题目内容：

根据对话内容，在空白处填入恰当的表达，使其意思通顺、合理、结构完整。

A: Welcome to Weihua clothes Store,     1.    ?

B: I’d like to buy a sweater for my mum. Her birthday is coming.

A: A happy mum!  2.   does she like best?

B: She likes white. It looks good on her.

A: All right. What size do you want for your mum?

B: Small is OK.

A:   3. this one?

B: It looks beautiful. How much does it cost?

A: Oh, it’s 398 yuan.

B: What! 398 yuan?  I think it is too     4. ____ .

A: But wait a minute! There’s a sale on today. Everything is half price.

B: Well, that’s great! I’ll     5.   it. I’m sure she will like it.