题目内容：

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。