Dear Mr. Wang/Ms.,

I didn't come to the first and second classes today. Because of the rain yesterday, I was wet all over, and I still had a temperature at night. The doctor advised me to rest for a few days, and I will go to school as soon as possible after I recover.

I apologize for the inconvenience. However, I hope to get your permission. Besides, I'll call you later. This is the doctor's certificate.

translate

Dear Mr. Wang/Ms.,

I didn't come to the first and second classes today. Because of the rain yesterday, I was soaked to the skin and had a fever at night. The doctor advised me to rest for a few days. I will go to school as soon as I get well.

I apologize for the inconvenience. However, I hope to get your permission. Also, I'll call you later. This is the doctor's certificate.