求一篇英语的作文书信的形式

求一篇英语的作文书信的形式要大学的水平。。

内容是：我生病了像班主任写请假的请假条。请假条中有医院的诊断证明。120字左右

Dear My Friend,
How are you? Do you want to know about my English study?OK,I will tell you.
I study English at Sunday afternoon at two o'clock.I study JianQiao English.And,last Saterday I took part in the Public English Test.I think I can pass.And,next Monday,my school will have an English words test.I want to take part in.I am sure,I can win.
Well,it's late.In the end of my letter,I put my best wishes for you!
Please write to me soon!
Yours,
Jackyanbo