英语短文改错 在线等

按序
1.opinions→opinion
2.for we→for us
3.bad→badly
4.has brought→have brought
5.hear of→hear
6.wasted→waste
6.type→typing
7.focused→focus
8.be used→not be used
8.where we→when we

senior school
1opinion,. 2badly needed . 3have brought 4 hear the ring of mobile phones 5wasted 6typing short messages .7,mobile phones not be used in the classroom.8 where we are having class .

1.opinions-opinion 2.we-us 3.bad-badly 4.has-have 5.hear of-hear 6.wanted-wasted 7.type-typing 8.focused-focus 9.studies-study 10.where-when

In my opinion
we students acquiring knowledge
So quiet is need for us
students have
even want
前后有点矛盾，是说需要安静还是不要安静，自己要改好啊！