Unit61．Doctorswere__________bytheunusual(不平常的)marksonthechild'sface.A.wonderedB.exploded2．You'revery__________tobealiveaftersuchabadcarcrash!A.incredibleB.luckyC.accidentalD.mysterious3．Thereisageneral__________thatthingswillsoongetbetter.A.beliefB.theoryC.knowledgeD.explanation4．Ah,you'vefoundmykeys.I'vebeenlooking__________forthem.A.nowhereB.elsewhereC.everywhereD.anywhere5．Theplane__________oneoftworoutes—eitheracrosstheAtlantic,orovertheNorthPole(北極).A.doesB.wantsC.takesD.is6．Thenursesaidshewouldtakeablood__________andtestit.A.sampleB.typeC.mixtureD.model7．Ifelt__________grief(悲傷)whenmybrotherdied.A.vastB.countlessC.obviousD.extremeC.trappedD.puzzled8．You'llhavetoimproveyourdriving__________ifyouwanttopassyourtest.A.approachB.techniqueC.technologyD.strategy9．Thebookusessimple__________toexplaintherulesofchess(國際象棋).A.diagramsB.structures10．Thesestatuesaretheonly__________.A.tracksB.tracesC.inventions11．Manyillnesses__________lackofexercise.A.resultfromB.resultinC.bringaboutC.formsD.shapesD.featuresD.bringon12．Thelargecompany__________anumberofsmallerones.A.tookupB.tookoutC.tookoffD.tookover13．Itwasataneveningparty__________Ifirstsawher.A.thatB.ifC.sinceD.as14．I'msorryI'mverybusyjustnow.IfIhadtime,I__________tothemovieswithyou.A.wouldhavegoneC.hadgoneB.wouldgoD.went15．__________,thestormhaskilledfivepeople.A.WhichisreportedC.AsisreportedB.ThatbeingreportedD.Asbeenreported16．She__________thebooksometimeinthepast,orshecouldn'thaveansweredthequestionsowell.A.shouldhavereadC.musthavereadB.maybehavereadD.wouldhaveread17．Hewonderedifhecouldslipoutofthelecturewithoutanyone__________.A.tonoticeB.noticedC.beingnoticedD.noticing18．Thejokestartedthemall__________.A.laughB.laughedC.laughing19．Hefailedthetestbutpromisedtodo__________betternexttime.A.moreB.farC.quiteD.so20．Imissedthelastflight,__________decidedtostaythenightattheairport.D.tolaughA.