Dear Bob,
I have just returned home and thanks for your kind help during my stay in Canada. Unfortunately, when I opened my luggage, I found the music CD that I forgot to return to you.
I am really sorry for would like to pay for it so you can buy another copy at your local store. If you want to keep exactly the same one, I can mail the CD to you as soon as possible.
Again I apologize for the inconvenience I have accept my sincere apology and reply to me at your earliest convenience and advise me of your wishes.
Sincerely yours,
xxx
温馨提示：答案为网友推荐，仅供参考