Read and judge. （读短文，判断句子正误。)

Today is Saturday. Sam doesn't go to school. He goes to his grandparents' farm with his father. It's twelve o'clock. Sam and his father sit at the table. They are having lunch. But Sam is not happy. "I don't like this soup," says Sam. And he puts down the spoon. "All right," says his father.

After lunch, "Let's go to the farm and work this afternoon," says his father. They water the trees and pick some oranges from the trees. They work very hard. At about six o'clock, they come back. Sam's father gives him a bowl of soup. "Oh, the soup is very nice," says Sam. "It's the same soup at noon. It tastes good because you are hungry," says his father.