Only One Hamburger
A train stops at a station. A young man wants to get out and buy some food, but it is raining. A boy is standing under a big umbrella(雨伞). The young man says to the boy, "Can you go and get us two hamburgers? One for you and one for me. One hamburger is 10 yuan. Here is 20 yuan." "Great!" says the boy and he goes to buy the hamburgers. After a while, the boy comes back with one hamburger. He is eating the hamburger. "Where is my hamburger?" asks the young man. "Oh, there is only one hamburger in the shop, so I eat my hamburger. Sorry, I can't buy one for you. Here is the rest (剩下的) of the money." The man is sad and the train leaves (离开) the station.