What is the common template translation of English apology letters?

English letter of apology with translator I:

Dear Charlie:

Please forgive me for not being able to see you off at the airport this Saturday. A major business partner of our company will attend an important meeting in Xiamen this weekend, and my boss finally chose me to accompany him there to negotiate a new deal.

I have just been informed of this plan, and I am happy with this decision. This is an opportunity to show and improve my ability, so I'm afraid I can't go to the airport. Studying abroad is an important step to realize your dream.

Dear Charlie:

Please forgive me for not being able to see you off at the airport this Saturday. Our company's main business partner is going to Xiamen to attend an important meeting this weekend, and the boss finally chose me to accompany him to discuss a new thing.

I just received the notice of this plan, and my happy decision is an opportunity to show and improve my ability, so I'm afraid I can't go to the airport. Pursuing studying abroad is an important step to realize your dream.

Translation of English Apology Letter II:

Dear David:

I'm afraid you will think that I didn't reply to your letter1February 7 earlier, which is unforgivable, but when I tell you the reason, I'm sure you will believe that this negligence is excusable. I happened to be in Hong Kong when your letter arrived.

Because my family couldn't give it to me while I was away, it was kept on my desk until I picked it up. Now the first thing I must do quickly is to write these lines to you to express my deep apologies.

I enjoyed many pleasant scenery during my trip. I'll be happy to introduce you next time I see you.

Dear David:

I'm afraid you'll think it's unforgivable that I didn't reply to your letter, but when I tell you the reason, I'm sure you'll believe that this neglect is excusable. I was in Hong Kong when your letter arrived.

Because my family couldn't tell me that it was always there when I was away, I lay on my desk until that moment, and I accepted it happily. Now, the first thing I have to do is to write these lines to you quickly to express my deep apologies.

I like many pleasant scenery during my trip. I'll be happy to give you an explanation when I see your next one.

Translation of English Apology Letter 3;

Dear Kate:

Please forgive me for not returning your Robinson Crusoe to you. I finished reading this book with great interest.

I finished reading this book and was about to return it when my cousin came to see me. Never seen this book, she is so interested in it that I have to keep it for a longer time.

However, since your book has brought me extra pleasure, I hope you will forgive me for not returning it in time.

Thanks again for your loan.

You are sincere,

Dear Kate:

I'm sorry I didn't get back to your Robinson Crusoe. I read it with great interest.

I have finished reading this book and am about to return it. My cousin came to see me. She has never read this book. She is very interested. I have to keep it.

However, I hope that in view of the extra joy provided by your book, you will ignore my negligence and fail to return early.

Thanks again for your loan.

Hello.