Dear teacher
When I leave the classroom without permission, I found that I made a big mistake. I did not wait until the teacher came, went to eat. This is a lack of respect for the teacher. When I was young, my parents hope I can respect the teacher and classmates, but I did not do this point. I'm rude and arrogant behavior let you received distress. I hope you can give me a chance to start with a clean slate, after all, we are your most loving students. Think carefully, these days I do have some confused, make these bad things, and again I am sorry. I promise I won't do such a thing.
Your student Victor