Dear _______ ,

I am excessively sorry to tell /say to you that _______(直接說出道歉事由). Now , I am writing you this letter of apology to show my deep regret . Please accept my sincere apology . I hope you will understand me and excuse me for _______(請求對方原諒的事由).

The reason for my delay/absence/negligence was that _______(過失的原因). I had no time because _______(當時的情況). Therefore it’s not in my power to _______(過失導致的結果).

Naturally , I want to _______(解決問題的辦法). I shall be obliged if you will kindly write and tell me that _______(希望對方原諒自己). I wish you could accept my apology .

Sincerely yours ,

Li Ming