Tell a joke.

One day, the math teacher asked Xiaoming 1+ 1 what is it? Xiao Ming said he didn't know, so the teacher told him to go home and ask his parents.

Xiao Ming went home and asked his father who was reading a book. "I killed a man yesterday"

I asked my mother again that she was chopping vegetables and said, "kitchen knife."

He asked his sister who was watching Altman: "Altman"

He asked his crying brother again; "He owed me an eraser last spring."

The next day, the teacher asked Xiao Ming 1+ 1 what is it?

Xiaoming; I killed a man yesterday.

The teacher sent Xiaoming to the public security bureau.

Policeman: What did you use to kill that man?

Xiaoming; kitchen knife

Policeman: Who did you kill?

Xiaoming; Ultraman

Policeman: Why did you kill him?

Xiaoming; He owed me an eraser last spring.