Dear Professor McCaffrey,
I am very sorry for being unable to attend the midterm exam. Due to a severe illness, I was unable to attend the midterm, and I am truly sorry for any inconvenience. I do have a signed doctors note, to show proof of illness. I can forward it to you by email, or simply hand it in the next class. I will be able to makeup the midterm at any time it is convenient for you. Thank you for your time and patience.
Best Regards,
Selin Celebi