At our school,we have plenty of rules.One of them is that we can’t bring our cell phones to school.The problem is that most students have cell phones,they always bring them to school,although they know the teacher will be mad at them.I don’t think we’re wrong when the teacher get angry.Of course,teachers are always right.They believe that if we bring our cell phones to school,we’ll concentrate more on our cell phones and think of cell phones all the time.I disagree.Cell phones can help with our studies.For example,if we find a new word,we can look it up in cell phones,we won’t use the dictionary.It is good for study,isn’t it?自已寫的