Dear zone Zhenhai,
you always talk in class, sometimes in class ear junk food. So my advice is this. I hope you can do!
1. Please don't talk in class?
2. Would you mind not in the classroom to eat?
3. Do you mind if I will listen carefully in class?
4. Would you mind every day to finish your homework on time?
5. Would you mind becomes quiet?
If you can do it, you will get good grades!
Your classmates, Chen Zhurong