答案：One possible version： Nowadays a lot of schools keep their students in school all day long. Students have different opinions about it. Some of the students think they enjoy less freedom and have little chance to get in touch with society. They are not able to fully develop their interests and hobbies. Therefore, they have little interest in their studies. Some others think school is the best place to get knowledge so they should put their heart into their lessons. Some students lack the ability to control themselves. Once out of school, they may lose control of themselves and do something that will influence/affect their studies。 Personally I think, it is necessary to keep students at school. But at the same time schools should organize various activities so that students can enjoy their school life.I don’t agree to keep students at school all day. Schools should offer students more free time to develop their personal interests。