Dear Professor,
I want to make you aware of my absences from your Monday and Wednesday classes last week. I have been extremely sick, which has made me incapable of going to any of my classes last week. I am aware that I missed my midterm on Wednesday and I hope I am able to make it up. I will be in next week and I am free to discuss this issue with you.
Thank you for your understanding,
Tiffany Mazza