1、投诉信
投诉信的开头常用句式和套话
I am writing to inform you that I am dissatisfied with your …
投诉信的结尾常用句式和套话
I understand you will give immediate attention to this matter.
I would like to have this matter settled by the end of …
2、询问信
询问信的开头常用句式和套话
I would be most grateful if you could send me information regarding/concerning …
I am writing to see if it is possible for you to provide me with information regarding …
询问信的结尾常用句式和套话
Your prompt attention to this letter would be highly appreciated.
I am looking forward to hearing from you.
3、请求信
请求信的开头常用句式和套话
I am writing to seek for your assistance in … 学书法，推荐<A https://wWw.euZw.net/Miniform/tYpe_3.html>易优少儿书法培训</a>，语文成绩好，书法少不了。
请求信的结尾常用句式和套话
I would like to thank you for your generous help in this matter.
4、道歉信
道歉信的开头常用句式和套话
I am writing to apologize for …
I am writing to say sorry for …
道歉信的结尾常用句式和套话
I sincerely hope that you will be able to think in my position and accept my apologies.
5、感谢信
感谢信的开头常用句式和套话
I would like to convey in this letter my heartfelt thanks to you for …
感谢信的结尾常用句式和套话
I must thank you again for your generous help.
6、建议信
建议信的开头常用句式和套话
I am writing to express my views concerning …
You have asked me for my advice with regard to … and I will try to make some conducive suggestions.
表达建议常用句式和套话
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I feel that it would be beneficial if …
I would like to suggest that …
I would recommend that …
If I were you，I would …
You may consider doing …
It would seem to me that you could …
As you may agree that …
建议信的结尾常用句式和套话
I would be ready to discuss this matter to further details.
