Dear Mary,
Hope you are doing wel. I am really well at school. How about your life?
I still have 6 classes each day, and I will go to the English training class at weekend.But I think it is very hard for me to write a composition. I try my best to finish it, but I usually can not reach the word limitations. And the content I wrote is very boring. I wish you could help me correct some grammar mistake in my composition. And I will write to you more often, please kindly point out the mistakes appeared in my email. Thanks a lot for your help in advance.
I look forward to your earliest reply.
All the best,
XXX