求一篇英语作文。

Dear Mr. Yuanfan
I just write to you to congratulate your get Engineering Master
I knew it from my friend. I think it is necessary to let you know my happyness.
For these years I am admired your study hard.I bevelive you will succeed in the field of computer.
I hope you will have a glorious future.
Yours sincerey,
Linfan

Dear.Yuan Fan
Yuan Fangang won the industrial master's degree, Lin Fan got from the news of her friends to congratulate him. These years, Lin Fan see he has been studying hard, very admire. Lin Fan believes that Yuan Fan will be successful in the computer field. She wishes Yuan Fan have more bright and happy future.
Lin Fan

是袁帜，好吗？大哥