补全对话。(30分) A:Can I help you? B:I want (1)____sandals. A:What about this pair? B:Can I (2)____? A:Sure. B:They are (3)____.Can you show me that pair? A:Yes. (4)____. B:They are OK. (5)____are they? A:They are 160 yuan. B:I will take them. A:Thank you.