Dear Mr. Smith, I'm sorry that I have to leave school for some time, because I hurt my left leg when I went downstairs last Friday night. Fortunately, I had an operation immediately.
But the doctor told me that I had to stay in bed for a month. It was too long. What can I do in the days when you and other teachers and classmates have not seen each other for a long time? I'm really worried about this class.
I'll feel lonely without you. Mr. Smithson is looking forward to your reply.
I hope I can get back to school as soon as possible. Your sincerity, Wang Kai.
Dear XXX, you said in your last letter that you are worried about the coming public speech. You really don't need to be so prepared. You can remember every word of your speech.
The only thing you need to do is believe in yourself. I believe you will be OK. If you need to talk to someone, please call me.
I have been waiting for your love, XXX.
Dear Lihua, I'm really sorry to hear that you are going to the hospital. Your family told me that you are making good progress and will be discharged in about ten days. I'm glad to know that about the next day or so, you will receive a small package from me.
I hope you like it. I really hope you don't rush to recover, because you will think for yourself and strive for an opportunity to have a good rest before you go back to normal work. Your sincerity, Li Lei.