What should I tell the teacher if I want to make up lessons?

The situation can be said, "Hello, teacher, can you help me make up the lessons?"

This sentence is a direct and concise expression, indicating that you want the teacher to provide guidance. I feel that there are some learning gaps or difficulties in some course contents or topics, and I hope the teacher can help fill these knowledge gaps.

Express your learning motivation and desire to further improve your grades to the teacher, and tell the teacher that you hope to deepen your understanding and master more knowledge by making up lessons.