口语应用

A: 　73
B: Yes, please, I want to buy a pair of sports shoes.
A: 　74
B: Size ten or eleven.
A: OK! What about this pair?
B: Sorry! I don’t like black. Have you got any other colors?
A: Other colors? 　75
B: Can I have a look at the brown ones?
A: Yes, please.
B: 　76
A: Forty-six yuan
B:　77
A: How about forty?
B: No, it’s still expensive. What about thirty?
A: Thirty? Er…all right. Please take it。