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I feel so sorry that i can't work ,because of eating more cold drink.Please let me go back home and have a rest.
Dear Mr/Ms ;
Today I'm writing to you to ask for a five-day leave, for I've got cold last night with carlessness.
This morning my mother took me to see the doctor,who told me to stay in bed for some days. So I am very sorry to be absent from school, especially your interesting lessons. I'll be sure to make up for the missed lessons after I recover from the illness.
Yours ever,
.
Dear Mr. Smith,
I am really sorry to tell you that I cannot attend the training course next Tuesday,because ny manager has appointed me to go on a 3-day business trip to Hainan. Will you please record the lecture for me to review later?
Thank you for your consideration.
Yours faithfully,
Li Ming
Dear Mr. Zhao,
Because I ate too much expired food yesterday, I had a very bad stomachache. I went to see the doctor, and he said that I should stay home. Therefore, I cannot come to class on Monday.