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A: Good afternoon!(81)__________________
B: Yes,please. I want to buy a sweater for my son.
A: (82)____________________
B: He likes black.
A: I’m sorry. (83)____________________ We only have sweaters in blue and green.
B: The blue one looks nice. How much is it?
A: It is twenty dollars.
B: Oh, it is too expensive(昂贵的).
A: (84)__________________ It is only fifteen dollars.
B: OK, I’ll take the green one.
A: (85)___________________
B: Thank you.
A: You’re welcome.
A: It’s blue.