WhenIwasatuniversityIstudiedveryhard.Butalotofmyfriendsdidverylittlework.Somedidjustenoughtopassexams.Othersdidn’tdoquiteenough.FredBaineswasoneofthem.HespentmoretimedrinkingintheStudents

　　　WhenIwasatuniversityIstudiedveryhard.Butalotofmyfriendsdidverylittlework.Somedidjustenoughtopassexams.Othersdidn’tdoquiteenough.FredBaineswasoneofthem.HespentmoretimedrinkingintheStudents’Unionthanworkinginthelibrary.

　　　Onceattheendofthetermwehadtotakeanimportanttestinchemistry.Thetesthadahundredquestions.InmyroomthenightbeforethetestFredwaswatchingTV.Fredusuallyworriedalotthenightbeforeatest.Butonthatnighthelookedperfectlycalm.Thenhetoldmeofhisplan.“It’sverysimple.ThereareahundredquestionsandIhavetogetfiftycorrecttopassthetest.I’lltakeacoinintotheexaminationroom.Ihaven’tstudiedachemistrybookformonthssoI’lljusttoss(扔，抛)thecoin.ThatwayI’msureI’llgethalfthequestionsright.”

　　　ThenextdayFredcamehappilyintotheexamroom.Ashesattossingacoinforhalfanhourhemarkeddownhisanswers.Thenhelefthalfanhourbeforetherestofus.

　　　Thenextdayhesawthechemistryprofessorinthecorridor（过道，走廊）. “Ohgood”hesaid“Haveyougottheresultofthetest?”Theprofessorlookedathimandsmiled“Ahit’syouBaines.Justaminute.”Thenhereachedintohispocketandtookoutacoin.Hethrewitintotheaircaughtitinhishandandlookedatit.

　　　“I’mterriblysorryBaines”hesaid“Youfailed!”

　　81.Thisstorymainlywantstotellus________.

　　A.chemistryisreallyhardtolearn

　　B.thereweretoomanyquestionsforstudentstopreparefor

　　C.goodexamresultsneedshardstudy D.tossingacoincannotalwaysdecidetheresult

　　82.FredBaineswasoneofthosewho________.

　　A.didjustenoughtopasstheexam B.didn’tworkhardenoughfortheirstudies

　　C.hadtoomuchotherworkfortheStudents’Union D.werequitegoodatpassingexams

　　83.Fredcamehappilyintotheexamroombecause________.

　　A.hehadgotreadyfortheexam B.heknewtheanswersalready

　　C.theotherstudentswouldbebehindhim D.hehadhiswaytofinishtheexam

　　84.Thechemistryexaminfact________.

　　A.wasnotveryhard B.tooktheotherstudentsanhourtofinish

　　C.hadmorethanonehundredquestio