有老师批改：作文句子找错Last week,our class had a discussion about if we should extra class.（if）There were 15students said they agreed with it,because it's helpful for students‘ study.（there were,it's）There were also 25 students said they were disagreed with it.（there were also,they were）One more,some students are not careful enough in class.（one more）In my opion,we could extra class for students who are interested in it.That can obey every students’ thought.（cou

有老师批改：作文句子找错Last week,our class had a discussion about if we should extra class.（if）
There were 15students said they agreed with it,because it's helpful for students‘ study.（there were,it's）
There were also 25 students said they were disagreed with it.（there were also,they were）
One more,some students are not careful enough in class.（one more）
In my opion,we could extra class for students who are interested in it.That can obey every students’ thought.（could和extra中间,obeyevery students’ thought）（提示：这篇文章是过去式,加个理由.句子是错的挑出来的）
括号内是错的那部分