How to write the verification message of Teacher Jia's WeChat?

The verification message of the teacher plus WeChat can be written as follows:

1. Dear teacher XX, I am your student XXX, and I hope to join your WeChat, so as to ask you some questions and learn doubts.

Dear teacher XX, I am your student XXX, and I want to exchange WeChat with you, so that I can ask you questions after class and learn some problems in my life. I look forward to your approval.

Dear teacher XX, I am your student XXX, and I hope to be your WeChat friend, so that I can ask you some questions and share some study materials after class.

4. Dear Teacher XX, I am your student XXX, and I hope to join your WeChat, so as to ask you some questions and learn doubts. Please go through Friend Request, thank you!