【成才之路】2014-2015学年高中英语 Module 6 The Internet and Telecommunications Section Ⅱ双基限时练 外研版必修1Ⅰ.单句语法填空(不多于3个单词)1.Teenagers should concentrate ________ thef danger. G. It's also important to keep close friends in our daily life. 答案 1.C 2.E 3.B 4.D 5.A