The problem of sending emails to the admissions office of transfer schools

First of all, you should call your pre-adjustment school tutor and ask if you can accept your adjustment materials. If you don't accept them, there is no chance. If you accept it, then, first of all, you should praise him and say

I wanted to apply for your graduate students before, but I didn't register for various reasons. Now I happen to have this opportunity. I hope the teacher can take me to study. The following is a scanned copy of the certificate I obtained during my college years. . . . . . . . .

Finally, I hope the teacher can give me a second interview. I will cherish this hard-won opportunity and strive for a master's degree with the help and guidance of the teacher. Thank you teacher!

Of course, you can't always flatter him. You should correct these yourself. It is best not to exceed 200 words. I hope I can help you.