Good morning. What can I do for you?
Christmas Day is coming. I want to buy several postcards to send to my family and friends. Can you recommend me some?
Of course. How about these postcards? They are specially designed for Christmas.
These postcards are great. I want to buy a dozen with different pictures.
No problem. You can choose what you like.
How much is a postcard?
A postcard costs you five yuan. A dozen postcards cost you 60 yuan.
OK. Here is the money. Thank you very much.