Problem description:
Divide into three points
1. Apologize for losing the book borrowed from the library.
2. The detailed process of losing books
3. Accept the lesson and accept the compensation.
Analysis:
Dear sir,
I am writing to apologize to you because I lost the book I borrowed from your library. I know it's shameful to be so careless, but I really can't find it now.
I borrowed a book called The Adventures of Huckleberry Finn yesterday. On my way home, I happened to meet some friends. Later, I played football with them on the school playground. The books I took from your library were put on the shelf. I thought no one would "borrow" that book. It would be safe. However, I have never seen this book again.
I am really ashamed of my carelessness, but I have learned a lesson from this incident. I will be compensated.
yours respectfully/sincerely
Jack
2006. 12. 16