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Dale is a six-year-old boy. And now he is a student in Grade One. His father has a computer in his room. Sometimes, Dale uses it to play some computer games or listen to some music on weekends.

Today is Saturday. It is his sister Kathy's tenth birthday. There is a big party in the house in the evening. It's half past seven. Dale is eating some birthday cake, and Kathy is dancing to music. Then his uncle comes to the house and he gives Kathy a red scarf as a present（礼物）. Then he gives Dale's father a box and says, "Here is a new mouse for you. You told me the old one isbroken."

"OK, thanks a lot." Dale's father says.

"But, I don't like that mouse, Uncle Leo. It is very dangerous. And my cat will eat it." Dale says.