？？提示：一女士在商店买鞋，先试5号鞋，不合适，又试一双4号的，觉得很舒服，且是成本价，就买下来了。Sa

？？提示：一女士在商店买鞋，先试5号鞋，不合适，又试一双4号的，觉得很舒服，且是成本价，就买下来了。

Salesgirl：1________ ，madam？There are all kinds of shoes in our shop.

Woman：I want to buy a pair of sports shoes.

Salesgirl：2________？

Woman：I think size 5. I prefer white colour．But yellow ones are OK.

Salesgirl：These are size 5. You can try them on.3 ________？

Woman：Not quite. They’re a little big. May I have a look at another pair？

Salesgirl：Sure. Try on this one then．It’s size 4. 4________ now？

Woman：Comfortable. 5________ ？

Salesgirl：Twenty dollars.We are selling it at cost.

Woman：Really？ I&39;ll take it then. ________________

？？

________________

________________

________________

________________

请帮忙给出每个问题的正确答案和分析，谢谢！