When I feel better , I will normally come to school,and bring you a doctor's certificate.Thank you for your kindness.
I ask permission sick leave on Wednesday 18 August 2015, to tell you to know and approve please.
I have a doctor appointment.
I am not feeling well today. I would like to take sick leave
The doctor suggested me to rest at home
I have a headache.
Also i enclose a doctor's note for consist with evidence for sick leave of 1 days that Wednesday 18 August 2015, to tell you to know and approve.Thank you for your kindness.
I am writing to let you know that I couldn't make it to your class on the _____[write date]_____ because I am sick of your teaching style. I need some days off to fresh up my mind. Once I feel better I will return to the class. I do hope that your teaching style will be better as well. During my absent, I will be at home and can be contacted at 081-123456789