以下是妳需要的作文
Dear Li ming
I am sorry to hear that you are ill again. Don't be worry about your lessons, I will help you with it after class. You are often ill. Here is my advice for you. I think you should do sports at least forty minutes every day so that you'll be stronger and stronger. Second, don't spend too much time on computer because it's bad for your health. You'd better have enough sleep.Third, you should eat more fresh fruit and vegetables. Don't forget to drink a glass of milk every day. If you take my advice, I think you'll become stronger and stronger. Hope you will be well soon.
Yours
XXX(妳的名字）
希望可以幫助到妳：）