Today in class, the teacher got furious when he saw Tom's homework. He held back his anger and called Tom to the podium, and said sincerely: "Tom, why did you do such a bad job in your homework? Go back. Let your father sign and see how he deals with you!" Tom's head drooped like a wilted eggplant. He even heard the laughter of the classmates below. Tom was very depressed. What should he do if his father saw it? Why don't you beat him to pieces?

After school, Tom walked dejectedly, thinking of countermeasures as he walked. After a while, he came up with a "trick" and he hurried home. As soon as he entered the door, he pretended to be calm and said to his father: "Dad, let's play a game. I'll give you a demonstration first." As he said that, he put down his schoolbag, found a scarf to cover his eyes, picked up a pen and groped on the paper. Practice your signature. As he was writing, he asked his father: "Dad, what do you think of my signature? Can't you do it?" "What's this?" As expected, his father was fooled. As he spoke, he took off the scarf from Tom's eyes, covered his own eyes, and followed Tom's example by lying on the ground and practicing his signature. Tom seized the opportunity, tiptoed to his schoolbag, took out his exercise book, and carefully placed it in front of his father. His father was still in the dark and continued to write! After his father finished signing, Tom quickly put the homework book back into his school bag.

Seeing that it was done, Tom said with relief: "Dad, the game is over." Dad took off his scarf and admired the signature. He looked at it, a little puzzled, and said to himself He said eloquently: "I obviously signed four words, why are there only three left?" Seeing his father, Monk Zhang Er, confused, Tom made a proud face.