When you"re reading a document, underlining may help to keep your mind ______on the material.
在已经普及九年义务教育的地区，小学生必须通过统一毕业考试才能升学，否则没有机会读初中。
最初提出“交际能力”这一概念的是______。
TheEnglishlanguageteachingbusinesswillbecomethevictimofitsownsuccess,______maybeastonishingtoyou.
—Should I hand in form right now?
—No. ______. And when you finish it, call me please.
