第一句：What am I supposed to buy in here?
A: What am I supposed to buy in here?
B: You can buy some of these nice butterflies.
A: No, I'm sorry. I don't think it is nice to have butterflies mounted in boxes. It is kind of disgusting.
第二句：I'd like to buy these jade bears.
A: I 'd like to buy these jade bears. How much are they?
B: This one is 2300 dollars.
A: Maybe I should buy it for my mother. What do you think?
B: Alright. Buy it then.
Half carton of cigarettes，please.