Nameaddress(เขียนเหมือนจดหมายปกติก่

Name
address(เขียนเหมือนจดหมายปกติก่อนค่ะ)

Dear Teacher...,
I'm writing you this letter to request 2 days off in sick.I have a headache. I request to be excused from class between 25 - 26 August .
When I feel better , I will normally come to school,and bring you a doctor's certificate.Thank you for your kindness.

Yours sincerely ,
Name