3)道歉信
这类信件的语气要视收信人是谁而定，但中国有句老话说得好“礼多人不怪”，至始至终保持一个歉意的态度是这类信件要注意的细节：
Your neighbors have recently written to you to complain about the noises from your flat/ house.
Write a letter to your neighbor. In your letter
1. explain the reasons for the noise
2. apologize
3. describe what action you will take
对方是熟识的邻居，即便如此，来自于写信人公寓的噪声对其干扰仍然是不可原谅的，对于对方的抱怨信，尽管我们可以选取熟络的语言来致歉，但语气和态度仍然需要诚恳，如
I am really sorry for the noises from my flat/house.
I hope you can accept my apologies.
I am trying to …
I promise…
这样的语句会让收信人觉得写信人是极有诚意解决这件事情的，起到了积极致歉的效果。
其他可供参考的语句有：
I am awfully/terribly sorry for what I have done.
I feel very guilty for what I have done to you.
I am afraid what I have done has caused many inconveniences to you.
Please accept my most cordial and humblest apologies for…once more.
I will try my utmost not to make such a stupid mistake again.
I am so sorry to have put you to so much trouble.
4)建议信
雅思专家分析认为，首先考生们要分清楚建议信和抱怨信有着本质的区别，前者着重在于给出一些中肯的建议，语气是可以商榷沟通的，相对比较缓和，而抱怨信的目的是为了说明问题并得到对方的回复和解决，而且这一问题常常给写信人带来生活上较大的不便。建议信的重点在于在肯定原有成绩的基础上，尽量选取较为“乐观、积极”的词语表达自己对信中所述问题的兴趣甚至是参与愿望。如：
I am delighted to learn …
In my point of view, it would be better to…
I am very interested in …
I am ready to offer the information needed.
请看下面这个例子：
You are a member of a sports club in an old building. Now all the members are asked to provide suggestions to the manager of the club about the improvement of the club building. Write a letter to offer some suggestions. In your letter, you should say:
1. Why the club is important to you?
2. What your suggestions are
3. What benefits the members can obtain after improvement.
写信人被要求向一家体育俱乐部的经理提出俱乐部设施的升级建议，一些有建设性的中肯建议再通过积极参与的态度表现出来，会更容易被接纳。
5)感谢信
在写感谢信时，分清收信人尤为重要，本是亲密的多年好友，如果用词过于客气和庄重会让人觉得矫情，对于较为陌生的收信人，如下的表达就比较合适：
I take this opportunity to express to you my deep appreciation for the kind assistance you rendered me.
I wish there were a better word than “thanks” to express my appreciation for you generous help.
My appreciation to you for your generous help is beyond words. I wish I could repay it one day.
Please accept my most cordial thanks for your timely help, which I will always remember.
Thank you from the bottom of my heart for your kind help.
