请帮我挑挑错 First I think copying others'homework isn't right.I k

First I think copying others' homework isn't right.I know the teachers ask us to do （a lot of) homework and the homework is difficult .The most (important thing) is (that) many student(s) (aren't) interested in studying and they are lazy .But they must finish their homework,because they want to make the teachers happy .
In my opinion,I think they break the school rules.we should be honest and study hard .As a student ,we should try our best to study .when
we have (difficulties) ,we can ask our teachers and classmates (for) help.
This is my opinion (on) the problem.
括号里是修改后的部分

First I think copying others' homework isn't right. I know the teachers ask us to do many homeworks and they are difficult. The problem is many student are not interested in study and they ...