1、B,C,B,B,C,A,C,B,C,A,C,B,B,C,A,C,A,B,C,B,A,C,C,C,A,C,A,D,B,D,C,A,A,D,C,but,advertisement,useful,about,unhappy,less,to buy,getting,it,totally,Cellphones have become more and more useful in our lives. However, some students often bring their cellphones to school without obeying the rules of schools. On
2、e the one hand, we can get more information and learn more new knowledge on the Internet from the cellphones. And we can keep in touch with our families and friends in time. However, on the other hand, some students like playing games, listening to music, watching films, reading novels or chatting o
3、n line with cellphone. Their eyesight often becomes poorer and poorer. And they fail their exams because of playing games too much. In my opinion, we shouldnt bring cellphones to school. On weekdays we shouldnt play games too much. We can surf the Internet at weekends or on holidays, but remember not to waste too much time playing games.,