感謝信應充分表達自己的謝意，切不可給對方草率的印象。可藉助談對方的幫助來進一步表達感激之情。言辭應真摯、得體。
Suppose your friend lent you a book and gave you some suggestions when you made preparations for CET-6. Write a letter in about 100 words to show your gratitude. Do not sign your own name at the end of your letter, using “Li Ming” instead.
Dear Sherry,
My thanks to you for your help with my preparations for the CET-6 are beyond words.
Originally I only wanted to ask you for some advice on the coming test, as you were so good at English. But to my surprise, you gave more help to me than I had ever expected. You not only wrote down ten suggestions for me but also showed me how I could arrange my time and what I should do in each month before the test. Besides, you lent me the book I needed very much when you learned that I had not yet got it. It was really kind and considerate of you.
Your unreserved help enabled me to make efficient preparations and at last encouraged me to pass the test. So I would like to extend my heartfelt gratitude again.
Yours faithfully,
Li Ming
