Dear Judy,
I’m writing the letter for the purpose of making a sincere apology to you for my carelessness. When I arrived home, I found I had forgotten to return the music CD that you lent me. I fell awfully sorry for this. As I understand this CD is one of your favorites, I’ll try my best to send it back as soon as possible.
Please accept my heartfelt apology. I genuinely hope you can forgive me for my carelessness.
Yours truly,
Li Ming
