Answer:
Dear mr. Ellis,
I am writing this letter to inform you of my absence in the next three days of school. I am deeply sorry because I realize how important these days would have been for group work in the classroom. I do not deny that I feel guilty for the work I will entrust to my friends. To avoid this matter I can repeat alone my part of the project as soon as I get back to class. I hope you will answer my email soon.
Sincerely,
Bobby (idk put your name )
