找一篇英文文章中的語法知識和錯誤
Hello,I read your letter to me,you said your son is very rebellious and bad,often give you trouble,so you want to formulate rules,and let him keep.but you don't know how to set the rules,so I'll give you some advice.
First of all,your letter said that your son's room is very messy,often want you to clean up,then you should let him weekly cleaning his room at least once; secondly,you said he was not interested in studying,but often can not finish the homework,then I think you should talk to him and let him finish homework on time,; finally,you said that he often give you trouble,so I think you should let him deal with his own trouble yourself.
Thank you for your letter and your trust,the above is my suggestion,also wish your son to live with you.
這篇文章有什么語法錯誤和語法知識請幫我總結(jié)一下,