考研英语的作文占有的分值非常大，如何更好的拿下英语作文呢？这与好的英语语感基础是分不开的，但更重要的是日常词句的积累，这里，小编整理一些2020考研英语作文：投诉信基础表达，给同学们一些参考~
　　投诉信
　　开头常用句式
　　I am writing to complain about/that…
　　I am writing to inform you that I am dissatisfied with you…
　　I think it’s high time you realize…
　　I am writing to make a complaint about…
　　I feel sorry to trouble you but I am afraid that I have to make a complaint about…
　　I am writing to express my disappointment/ dissatisfaction/ concern about…
　　I am most reluctant to complain, but…
　　I am writing to advise you that I find… inconvenient
　　I wish to draw your attention to the problem / fault… that I bought…
　　I venture to write for complaining about…
　　I feel sorry to trouble you but I am afraid I have to make a serious complaint.
　　It is with great reluctance that I must inform you that …
　　I regret to inform that …
　　Thank you for your … which arrived yesterday. Unfortunately, …
　　结尾常用句式
　　I would be grateful if you could…
　　I trust you will take my complaint seriously and…
　　I will appreciate it very much if you could…
　　I must have you fully understand that without a satisfying solution, I will reserve my right to take legal action.