投诉信通常包括以下几个方面的内容：说明投诉的原因并表示遗憾;实事求是地阐述问题发生的经过，切忌夸大其词;指出问题引起的后果;提出批评及处理意见，或敦促对方采取措施，或提出所希望的赔偿以及补救方式。

投诉信的写作策略：说明投诉问题——描述具体情况——期待解决方案。

注意事项：写投诉信时语气要冷静、郑重、克制，不必过于礼貌。但也要就事论事，不能进行人身攻击。同时，在描述问题时尽量采用被动句式，使描述更加客观合理。

投诉信开头常用句式和套话： 

I am writing to complain about/that...

I am writing to make a complaint about...

I am writing to express my concern/dissatisfaction/disappointment about...

I feel bad/sorry to trouble you but I am afraid I have to make a complaint about...

I am most reluctant to complain, but...

I am writhing to advise you that I find...unsatisfactory.

I wish to draw your attention to the problem/fault...that I bought...

It is with great reluctance that I must inform you that...

投诉信结尾常用句式和套话： 

I trust you will take my complains seriously and...

I will appreciate it very much if you could...

I would be perfectly satisfied if you can kindly...

I understand you will give immediate attention to this matter.

I would like to have this matter settled by the end of...

Frankly speaking, I am not prepared to put up with the situation any more.

I must have you fully understand that without a satisfying solution, I will reserve my right to take legal action.

I would be grateful if you could...

I would appreciate it if you could...

考研英语写作建议信是对收信人就某一问题提出建议和忠告。它有可能是写给某个组织或机构，就改进其服务质量提出建议或忠告;也可能是写给个人，就其人生中的某个重大决定提出自己的看法、建议和观点。考生需要注意：建议信和投诉信在某些情况下既有相同，又有不同，在改进质量的建议和忠告方面应该有很多的共通点，但如果是关于个人的重大决定就不应该用很生硬的语言了。

建议信开头常用句式和套话： 

I am writing in reply to...

I would like to suggest that...

I am writing with my suggestion/proposal about...

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 conductive suggestions.

You have asked me for some advice on how to improve...I will try to give some useful suggestions.

You asked for advice concerning(with regard to)...and I will try to make some suggestions.

I have received your letter saying...I recommend that...

I am writing to express my views about...

建议信结尾常用句式和套话：

I hope that my suggestions are helpful for your decisionmaking anyway.

I would be more than happy to see improvement in this regard.

I believe that you will take my suggestions into serious account.

Please take good consideration of my advice. Thank you.

I would be ready to discuss this matter to further details.

Whatever you decide to do, good luck with your studies/work!

考研英语书信写作高分句型之道歉信介绍：

我们在工作或生活中，有时难免会犯一些错误，写封致歉信就显得很有必要。道歉信的目的是向收信人表明歉意，请求对方对自己的某种过失表示谅解。

道歉信通常包括以下内容：表示歉意;道歉的缘由;出现差错的原因;提出弥补措施;请求原谅。

道歉信的写作策略：表示道歉——说明具体原因、提出补救办法——再次致歉，希望得到理解。

写道歉信的语言要诚挚，解释的理由要真实，不要显出丝毫的虚情假意。好的道歉信不仅会取得对方的谅解，还会增进彼此的感情。在写作过程中，尽可能提供比较合理的理由。如果违反生活常识将导致扣分。在解释完原因后，尽量提供一个合适的补救办法，使行文更加完满。

道歉信开头常用句式

I am writing this letter to express my regret...

I am writing to apologize for...

I would like to give you my apology for...

I am very sorry to say that...

I must apologize about (not) doing sth...

Please accept my sincere apology for...

I am writing to say sorry for...

I am terribly sorry, but...

道歉信结尾常用句式

Once again, I am sorry for any inconvenience I have caused.

Please allow me to say sorry again.

Hope you can accept my apologies and understand my situation.

I sincerely hope that you will be able to think in my position and accept my apologies.

I want to let you know how regretful I am feeling now.

I am sorry that I can’t...and trust that you will be able to understand.

考研英语书信写作中辞职信的写作方法和道歉信有着异曲同工之处。辞职信的目的也是向收信人表明歉意，请求对方谅解自己的离开。辞职信通常包括以下内容：表示歉意;表明离开的理由。

写辞职信的语言要诚挚，解释的理由要真实，不要显出丝毫的虚情假意。好的辞职信不仅会取得对方的理解，还会增进彼此的感情，为以后可能的合作打下坚实的基础。在写作过程中，一定要尽可能提供比较合理的理由。

辞职信开头常用句式：

This is to inform you that I intend to resign from my current potion.

I am writing to inform you about my decision of resignation.

I feel very sorry for having to give up my position as...

I feel reluctant to give up my present job, but I...

I am sure it will come as no surprise that I wish to resign my position as...

辞职信结尾常用句式：

I sincerely hope that you approve of my resignation. I am sorry for any inconvenience caused.

Thank you for your caring and consideration in these several years’ working.

I would appreciate it if you would accept my resignation before...

Thank you very much for offering me the opportunity to work with the outstanding staff here.

My best wishes for the company’s continued growth.

考研英语书信写作求职信介绍：

求职信是写信人就某一职位向收信人提出请求。考生在写求职信时应当注意礼貌，同时也要注意信息的可信度。尤其是在强调自身经历和优点的时候，更应把握尺度。

求职信的写作策略：表明对职位感兴趣——自己素质的描述——期望回复。

求职信开头常用句式：

I am writing in response to your advertisement in China Daily of June 8...

I write this letter to apply for the position that you have advertised in Beijing Youth Thursday...

Your advertised position of general manager assistant interests me...

I am writing to express my interest in your recently advertised position for a waitress...

I would like to apply for the vacancy of...

I am writing this letter to recommend myself as a qualified candidate for the job of senior accountant you have advertised in...

I write this letter to submit my application for...

I have enclosed my resume that outline in detail my qualifications and experience.

Should you grant me a personal interview? I would be most grateful.

Any favorable consideration of my application will be highly appreciated.

Thank you for considering my application and I am looking forward to meeting you.

If you need to know more about me, please contact me at...