我写的英语作文,

题目

我写的英语作文,
nowdays,more and more people are keeping pets.Keeping a pet has many advantages.For example,a pet can bring some happies to us,it can become our good friend ,making our life more colorful,however,just as every coin has two sides,keeping a pet also has its disadvantages.on a hand,it makes our room dirty ,mess,also can make some noise .on the other hand ,it brings extra cost in our life.in a world,keeping a pet has both advantages and disadvantages.as far as I am concerned,an old man can keep a pet,because the old man has time to look after the pet,the small animals will be good friends.

答案

happies改为happiness.
on a hand改为on the one hand
in a world 改为in a word
其他没什么错误,注意细节.这篇文章写得还不错,有些用法挺不简单的,你是初中还是高中?