A:What can I do for you?
B:I want to buy a T-shirt for my father.
A:___1____?This kind of T-shirt sells well.
B:It looks nice. I think my father will like it.
A:___2_____?
B:I'd like Size M.
A:___3____.We have white,black,yellow and blue.
B:I want.... hmm.... yellow.____4____?
A:One humdred and twenty yuan.
B:OK. I'll take it.___5___.
A:Thank you.
what about this one?
which size would you like?
which color do you want?
how much?
here is the money.