英语翻译Big school have been a serious problem for students for

英语翻译Big school have been a serious problem for students for a lont time .Maybe your schoolbag is too__1_ to carry ,and it toubles a lot __2___you want to find a look out to read Nowan e-textbook will __3__ you.It is said that e-textbooks are going tobe __4___ in Chinese middle schools.An e-textbook,in fact,is a small ___5__for students .It is much __6__than a usual schholbag ang easy to carry.Though it is as small as a book ,it can __7__ all the material for study .The students can read the text page by page on the ___8__,take notes with the pointer,oreven"__9__"their homework to their teachers by sending e-mails.All they have to do is to press a button.Some people say e-textbooks are good,but some say they may be __10__ for the students'eyes.What do you think of it 1.A .light B .heavy C useful D .comfortable2.A .till B.after C.before D.when3 A trouble B.prevent C.help D.understand4.A used B .kept C.invented D .lent 5.A tv B.radio C.pen D.computer6 A.heavier B .lighter C.cheaper D.brighter7 A.hold B.build C.discover D.practice8.A.blackboard B .desk C.screen D .card9 A.find out B.hand in C.get back D.give back 10.A.helpful B.famous C.good D.bad