Once upon a time, a fox was walking along a road. He saw some beautiful grapes hanging over a high wall. He stopped to look at the grapes. They looked nice to eat .The fox wanted to eat the grapes very much, but he cou1d’t reach them. So he jumped as high as he could. Sometimes his nose touched a grape, but his mouth could not reach it. The fox jumped and jumped until he was very tired．
Finally he stopped jumping and walked away with his nose held high. He said, “I don't need those grapes. They look nice but I'm sure they are sour.”
In our daily life, when people can't get something they want, they may say, “The grapes are sour.”