根据下述内容，判断下列句子正误。

One day Mother looked at Tom's shoes and said, "Tom, look at your shoes. How dirty they are! You must clean them."

"Oh, Mother, but I cleaned them only yesterday," said the boy.

"But they are dirty now. You must clean them again."

"I don't want to clean them today; even if I clean them today, they will be dirty again tomorrow."

Tom's mother thought for a moment and said, "All right. Don't clean them then."

In the evening Tom came back from school. He was very hungry. "Mother, give me something to eat," He said.

"You had your breakfast in the morning, Tom, and you had your lunch at school," His mother said, smiling.

"I'm hungry again now," cried the boy.

"Oh, really? But even if I give you something to eat today, you will be hungry again tomorrow."