I would like to sincerely apologize for passing my research paper requirement 2 days behind the deadline. I was down with flu for almost three days, and I did not have the chance to drop by at the university to submit the said requirement. I tried sending you messages through your email a number of times, but to no avail.
I hope you can still accept my paper even if you will me a lower grade as I need to pass the course in order to graduate on time. In case you think that I need to fulfill additional projects to make up for the delay, you can tell me immediately so I can work on it. I promise that this delay will not happen again.