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.