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,
.
译文：
尊敬/亲爱的;
我今天给您写信是要请5天的假，因为我昨天晚上不小心感冒了。今天早上，我妈妈带我去看了大夫，大夫告诉我要在家里躺几天。所以，我对缺颗，特别是不能上您那有趣的颗，感到难过。我病好后一定把漏掉的课程补上。
此致
敬礼。
您的学生：.
Dear teacher,
I'm .I'm sorry that I can't go to school today.Because I have a fever.I feel very bad now.So I want to stay at home to take a rest.I hope you can permit me to stay at home.
Yours,
Dear Mr. Wang,
I am very sorry that I shall be unable to come to your classes today owing to a bad cold. I enclose a certificate from the doctor who is attending me. He said it will be two or three days before I shall be able to resume my school.
David
April 20