请你根据下面提示和要求,用英语写一封感谢信。
You borrowed from Mary a travel guide-book which you are now returning. Write her a letter of about 100 words thanking her for having lent it to you and telling her how useful you found it.
Hints: You have kept this book for more than six months.
You would have been lost for many times if it had not been for the guide-book.
Your name is Sally.
The date of your letter is July 6, ..
参考作文范文:
A Letter Expressing Gratitude
July 6,
Dear Mary,
I am returning you the guide-book which you lent me six months ago. I am very thankful to you, for it was a great help to me. It was with the help of this book that I was able to visit many places.
I am sure that I would have been lost many times if it had not been for this book. Besides, I learned a lot about the history of those places. Thank you again.
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With best wishes.
Yours,
Sally