他已经戒了毒,并且认识到了自己生命的宝贵。 (kick) He _________ his drug habit and learned that his life is valuable. 6.那些年人们并没有意识到污染的严重性。(be not aware of) In those years people __________ the seriousness of the pollution. 7.你应该努力提高你的阅读理解能力。(make an effort) You should _________ to improve your reading comprehension. 8.下次会议将着手解决校园暴力问题。(sort out) We will __________ the problem of campus violence at the next meeting.