（）18.He____youmorehelp,eventhoughhewasverybusy.（90）A.mighthavegivenB.mightgiveC.mayhavegivenD.maygive（）19.Acomputer______thinkforitself;itmustbetoldwhattodo.（91）A.can’tB.couldn’tC.maynotD.mightnot（）20.Jenny_______havekeptherword.Iwonderwhyshechangedhermind.（91）A.mustB.shouldC.needD.would（）21.---Shallwegoskatingorstayathome?---Which_______doyourself?（92）A.doyouratherB.wouldyouratherC.willyouratherD.shouldyourather（）22.---CouldIborrowyourdictionary?---Yes,ofcourseyou________.（92）A.mightB.willC.canD.should（）23.We_____lastnight,butwewenttotheconcertinstead.（92）A.musthavestudiedB.mightstudyC.shouldhavestudiedD.wouldstudy（）24.Tomoughtnotto____meyoursecret,buthemeantnoharm.（93）A.havetoldB.tellC.betellingD.havingtold（）25.Peter_____comewithustonight,butheisn’tverysureyet.（93）A.mustB.mayC.canD.will（）26.ItoldSallyhowtogetthere,butperhapsI______itoutforher.（94）A.hadtowriteB.musthavewrittenC.shouldhavewrittenD.oughttowrite（）27.---Don’tforgettocometomybirthdaypartytomorrow.---_________.（94）A.Idon’tB.Iwon’tC.Ican’tD.Ihaven’t（）28.---ShallItellJohnaboutit?---No,you____.I’vetoldhimalready.（N94）A.needn’tB.wouldn’tC.mustn’tD.shouldn’t（）29.It’snearlyseveno’clock.Jack____behereatanymoment.（95）A.mustB.needC.shouldD.can（）30.---Therewerealreadyfivepeopleinthecarbuttheymanagedtotakemeaswell.---It___acomfortablejourney.（95）A.can’tbeB.shouldn’tbeC.musthavebeenD.couldn’thavebeen（）31.---Yourphonenumberagain?I_____quitecatchit.---It’s9568442.（95）A.didn’tB.couldn’tC.don’tD.can’t（）32.Johnny,you___playwiththeknife.You___hurtyourself.（96）A.won’t…can’tB.mustn’t…mayC.shouldn’t…mustD.can’t…shouldn’t（）33.---CanIhelpyou,sir?---Yes,Iboughtthisradiohereyesterday,butit_____.（96）A.didn’tworkB.willnotworkC.can’tworkD.doesn’twork（）34.Whenhewasthere,he____gotothatcoffeeshopatthecornerafterworkeveryday.（1996年上海）A.wouldB.shouldC.hadbetterD.might（）35.Thefirespreadthroughthehotelveryquicklybuteveryone_________getout.（NMET1997年）A.hadtoB.wouldC.was