Jan.8th, 2016
Dear Mr. Wang/ Miss Wang/ Ms Wang,
I want to ask for one-day sick leave. When I got home after school yesterday, I didn't feel well. My mum took me to a hospital. And the doctor told us that my temperature was high. And I must stay at home to have a rest and take medicines. When I fell better, I will go back to school.
Yours,
XX
你在网上找翻译就可以