Professor Deadline Extension Request

You are taking a course with Dr. Mei Chen. A paper is due on Friday, but a family emergency has made it difficult for you to finish on time. You have completed the research and outline, and you hope to submit the final paper two days later.

给 Dr. Mei Chen 写一封邮件，并完成以下要求：

• Explain why you need more time.
• Describe your progress on the assignment.
• Request a specific new deadline politely.

请尽量用完整句作答。目标： 词 · 时间：7 分钟