Can I help you？
Yes，please.I want to buy these books.
OK,here you are.
How much are they?
They are fifteen dollars.
Oh, I don't afford them. Can you do cheaper?
Oh,sorry,these are for sale.
Oh,I feel pity, How about those books?
They're 35 dollars.
OK,I'll take them.
Here you are.
Thank you ,
You're welcome.And welcome to come again.
Can I help you？
Yes.I want to buy these books.
OK,here you are.
How much are they?
They are fifteen dollars.
Oh, I can't afford them. Can you make it cheaper? 楼上的把这句改成Can you make them cheaper?
Oh,sorry,these are for sale.
Oh,what a pity, How about those books?
They're 35 dollars.
OK,I'll take them.
Here you are.
Thank you ,
You're welcome.And welcome to come again.
Can I help you？
Yes.I want to buy these books.
OK,here you are.
How much are they?
They are fifteen dollars.
Oh, I can't afford them. Can you make it cheaper?
Oh,sorry,these are for sale.
Oh,what a pity, How about those books?
They're 35 dollars.
OK,I'll take them.
Here you are.
Thank you ,
You're welcome.And welcome to come again.