Dear Ms Ma,
I am sorry to tell you that I can't go to school today. Last night my mother had a high fever and a bad cough. Perhaps she has caught flu. I will take my mother to Tiantan Hoital and then look after her at home, so I couldn't go to school today. So I would like to ask for one day's leave. I will be very grateful if you grant my leave.
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
Dear MrMs ...,
I'm not feeling very well today. I've got a bad cold. My father took me to see a doctor this morning, and the doctor looked me over carefully and gave me some medicine. He also advised me to stay in bed for a day. So I can't go to school today. I hope I'll get weel soon and go to school tomorrow morning. Thanks.
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.