A professional email to your teacher asking for clarification on an assignment.
Dear Mr. Jones,
I hope this message finds you well. I am writing to ask for some clarification regarding the due date of the recent assignment on network security.
I understand that the deadline is approaching, but I wanted to kindly request to submit the assignment on Monday, October 2nd, instead of Friday, September 29th due to some private experiences that took more of my time than expected.
Thank you for your understanding. I look forward to your prompt response.
Kind regards,
John Smith