Dear Ms Yang,
I'm so sorry that I have got a cold.Because of the bad cold I can't go to school these days.As a result,I e for days.Thank you.
ZangHua.
Dear Sir,
I'm sorry to tell you that I can't go to school today, I've caught a cold because I swam in the school's swimming pool yesterday.
This morning I had a headache. After taking my temperature, my mother found that I had a high fever, immediately she took me to see a doctor, who advised me to stay in bed for 2 days. Now I am writing to you to ask for 2 days' sick leave.
With best wishes
Your student,
Tom
Dear Miss Chen,
I am ( ),I am so sorry to tell you that I have got a bad cold with headache,tiredness,inappetency and insomnia.My doctor advised me that I need a rest for 2 or 3days,so I ask for leave for 2 or 3days untill I am fine.
Thank you for your time and have a nice day.
This is the writing notice from Li Lei. I am sorry for the absence from the English Summer Camp today due to the illness caused carelessness of forgetting to take the umbrella with me when I went out in the rain yesterday on my way home. I will see the doctor today for Ive had a cold and if I feel better tomorrow, Ill come for Summer Camp tomorrow.
Best Regards,
Li Lei
One possible version:
June 8, 20xx Dear Sir, I'm sorry to tell you that I can't go to school today, I've caught a cold because I swam in the school's swimming pool yesterday. This morning I had a headache. After taking my temperature, my mother found that I had a high fever, immediately she took me to see a doctor, who advised me to stay in bed for 2 days. Now I am writing to you to ask for 2 days' sick leave. With best wishes.
Your student,Tom
Dear Mr/Ms ：
Today I'm e 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,
.
尊敬/亲爱的老师/班主任：
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，我对缺课，特别是不能上您那有趣的科，感到难过。我病好后一定把漏掉的课程补上。
xx年x月x日
尊敬的领导：
我因为身体不舒服，前往医院检查，经医生诊断，患上重感冒，肺内感染，需要打点滴3天，为此，特请假3天，手头虽有未完成工作任务，但时间还来得及，待我身体痊愈，一定加倍努力工作，完成全部工作，特请领导批准。
此致
敬礼！
请假人：
年__月__日
dear ms Chen;
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
school, especially your interesting lessons. i'll be sure to make up for the missed lessons after i recover the illness.
yours ever,
Dear Mr.,
I'm sorry to tell you that I caught a cold and I'm not feeling well now.I am adviced to stay in bed for two days and can't go to school then.But I think I'll get well soon and be back the day after tomorrow.
Yours sincerely,
尊敬的X老师：
您好!
我是X级专业直属班的学生，因为，需要请假(时间)从到，去往地点，请假期间有效联系方式：。
本人保证往返途中的个人人身和财产安全，在不耽误学习课程和任何集体活动的前提下，恳请您批准，谢谢!
班长(副班长)意见:
班主任意见：
本人：
申请人：
年XX月XX日
Dear Ms Yang,
I beg to apply for seven days’ leave /one week’s leave of absence the 4th to 10th of this month. Because my father is seriously ill now, so I want to return home to see him.
To support my application, I enclose the fax my sister sent.
Your student,
ZangHua.
To whom it may concern,
This is the writing notice from Li Lei. I am sorry for the absence from the English Summer Camp today due to the illness caused carelessness of forgetting to take the umbrella with me when I went out in the rain yesterday on my way home. I will see the doctor today for I've had a cold and if I feel better tomorrow, I'll come for Summer Camp tomorrow.
Best Regards,
Li Lei