Complaint Letter
　　词汇：
　　complain against sb. about sth.投诉......
　　dissatisfaction with不满于......
　　put up with / bear / tolerate忍受
　　awful 糟糕的
　　poor service糟糕的服务
　　inconceivable不可思议的
　　out of one’s expectation令某人大失所望
　　look into / go into / investigate调查
　　incident / matter 事件
　　sanitary situation卫生条件
　　bad manners 不礼貌
　　disturbance干扰
　　nuisance 麻烦事
　　remedy 补救
　　solve解决
　　recurrence再次发生
　　句型：
　　1) I am writing to you to complain about ...
　　2) I am writing to express my dissatisfaction with...
　　3) There are some problems with the flat that I wish to bring to attention. For one thing, there is…For another,...
　　4) I can hardly bear /tolerate /put up with it any more.
　　5) I hope that the authorities concerned will consider my suggestions and improve the situation as best as they can.
　　6)I sincerely hope that it will review its management system, with the view to providing, better service to the public.
　　7) We trust that you will now consider this matter seriously and make an effort to prevent the recurrence of this kind.
　　8) We will appreciate your willingness to make up for the loss.[CKQ]
　　Inquiry Letter
　　词汇：
　　inquire about 咨询
　　seek寻求
　　obtain 获得
　　regarding, concerning 关于
　　provide sb with sth 提供
　　inform. sb. of sth.通知某人某事
　　convenience方便
　　look forward to (doing) sth.盼望...
　　prompt / immediate 及时的
　　take into account of sth. / take sth. into account 考虑到...
　　detailed详细的
　　essential / necessary必要的
　　grateful / obliged 感激的
　　appreciation感激
　　be concerned about... 对...关心
　　句型：
　　1) I would like to obtain some information about…
　　2) I would like some detailed information on / about...
　　3) I am an overseas student who lives /studies in...
　　4) I am writing to you in the hope that I may obtain...
　　5) I wonder if there is a tennis club available.
　　6) I would be much obliged to you if you could let me know the procedures I have to go through.
　　7) Your prompt and favorable attention to my inquiry would be highly appreciated.
　　8) I am looking forward to a favorable reply at your earliest convenience.[CKQ]
　　Thank-you Letter
　　词汇：
　　appreciate感激
　　convey / express one’s appreciation表示感激
　　cordial衷心的
　　beyond words难以言表
　　courtesy礼貌
　　generosity慷慨
　　grateful感谢
　　gratitude感激之情
　　hospitality好客
　　moved感动
　　timely及时的
　　句型：
　　1) I take this opportunity to express to you my deep appreciation for the kind assistance you rendered me.
　　2) I wish there were a better word than “thanks” to express my appreciation for you generous help.
　　3) My appreciation to you for your generous help is beyond words. I wish I could repay it one day.
　　4) Please accept my most cordial thanks for your timely help, which I will always remember.
　　5) Thank you from the bottom of my heart for your kind help.