CallmeNicole
Dear Mr/Mrs/Miss XXX,I'm one of your sincere listeners of your whole classes and had taken the exam. But I won't come next term due to I am not a student of your school. So may I ask you to give a priority to my correction? And I also wonder whether bringing my test paper back to my own school is permitted or not. It is important because it is a certificate of my efforts.Thank you for you reading.(居右)Yours,(居右)XXX大致就这样了。
多妈elva
Dear Mr./Ms. xxx,Could you do me a favor? I attended each class of yours this semester and participated in the exams, (一堂还是多堂考试?根据需要选单复数) but I am not a student of this college/university/school and won't be able to come back for your classes next semester. Could you please grade my exam paper first and give me a score. If possible, I also hope to take the paper with me back to my own school, just to show that I do have been learning English here.Thank you very much.