How do you know you won't forgive you if you don't look for it? Go to the teacher first and apologize sincerely. This is a sincere apology. Make it clear to the teacher how important your mistakes and grades are to you, but don't threaten or scare the teacher. Don't say, "Teacher, if you give me zero points, I won't find a job." This kind of words is the most annoying. Say it sincerely, just have a good attitude. If the teacher has another attitude, you should think about what to do, brother.