He plagiarized and cheated.

The boy stopped crying for a moment. He didn't expect his math teacher to say that.

"Teacher, I ... I was really bullied by Yue tingfeng. The entire class saw it. I just wanted to say a few words to him, and he ... He broke my pen. That was my favorite pen!"

Yue tingfeng laughed mockingly. 'What's the use of a boy who only knows how to tattle?'

Not to be outdone, he also said,""Teacher Zhang, there's a reason why I broke his pen. Look at my shoulder. He used his pen to draw so many lines on my clothes. This dress was brought back from Paris for my birthday this year. I really like it and couldn't bear to wear it in my life, but he deliberately drew it for me like this. How am I going to explain this to my mother when I get home?"

The boy was so scared that he quickly said,"No... No, the teacher is accusing me. I didn't do it on purpose. I really didn't do it on purpose. I didn't know ... I didn't know that the tip of the pen was pointed at him."