1 xxx school located in the east of china .
be located in所以改为xxx school is located in the east of china
2 第二句要加上逗号：XXX school has beautiful views,as well as a lot of excellent teachers and students .
3 when we free改为when we are free
4 know zbout 改为know about
5 help us about the questions 改为help us with the questions
改过后的文章如下：
xxx school is located in the east of China .she was set up in 1900.XXX school has beautiful views,as well as a lot of excellent teachers and students .She is such a good school that almost all the students want to study in.
It's aim is to make us not only good at study but also have a good personality.We can learn a lot in class and make friends when we are free.
I want to learn the knowledge that we need ,I also want to know bout the etiquette and rules .I hope teacher can tell us about the life when we study in the foreign country and the difficulties we will face.I also hope the teacher can help us with the questions in our study group.
以上我做了点修改,一些大小写也改了过来,总体来说文章还是不错的.有问题可以私聊.