How to write an email for a lecture to tell her about our absence for writing her test

Subject: Request for Absence from Test

Dear [Lecturer's Name],

I hope this email finds you well. I am writing to inform you that I will be unable to attend the upcoming test in [Course Name] scheduled for [Date].

Unfortunately, I have encountered unforeseen circumstances that require my immediate attention and presence. I understand the importance of this test and I apologize for any inconvenience my absence may cause. I assure you that I will make every effort to make up for the missed test and stay on track with the course material.

I kindly request your understanding and guidance on how to proceed in this situation. I am willing to provide any necessary documentation to support my absence.

I appreciate your consideration and assistance in this matter. Thank you for your understanding.

Sincerely,
[Your Name]