Mr. Chancellor:
My name is ....
I am not very good at English ,so I always failed in the exams. Of course, the largest reason is my laziness on study,but the next most important reason is I am lack of enough help from school. Dear chancellor, I promise here that I will pay 100% effort on study ,so please help me and do not give me up. Are you willing to do me the favour?
Best wishes to you
yours
日期
自己再看看，添点删点吧。
以后可要加油，不要对不起我的英文邮件^^
追问谢谢啦！会好好努力的！