Apologize to the teacher

First of all, I am deeply sorry for you. I made you angry. I clearly know that everything you do is for my own good. You should treat our classmates in Class X, Grade X, as your own children from the bottom of your heart. I shouldn't have made you angry, I know that very well.

Solemn promise

Secondly, I solemnly promise you: I, XXX, the child who once made you angry. Now, I am clearly aware of the bad habits I dare not have. I will definitely attend class well, study hard, raise my hand actively in class, and try my best to get a satisfactory result for myself, my parents and teachers.