完成对话。
Salesgirl: Can I help you?
Mary: Yes. I want a skirt.____?
Salesgirl: It's eighty yuan.
Mary: It's too expensive. ____?
Salesgirl: Yes, we do. This skirt is only thirty-five yuan. ____?
Mary: Medium.
Salesgirl: And ____?
Mary: Yellow color.
Salesgirl: Do you like this yellow skirt?
Mary: Yes, I like it.
