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单元练习题1.Yesterdayitrained____inmyhometown.A.PouringB.comingC.wateringD.going2.Doyouthinkthedictionaryisofmuch____toyou?A.BeneficialB.benefitsC.BenefitD.valuable3.Herhealth____fromgoodtoweaklastyear.A.DifferB.variedC.variousD.wasdifferent４.Thereoughttobemorebusesduringtherushhours,______?A.didn’titB.oughtthereC.didthereD.oughtn’tthere５.Thescientisthasbeendoingresearchon____lifeintheoceanfor20years.A.AvarietyofB.varietyofC.VaryingD.variousof1.Aleft-luggageofficeisaplacewherebags____beleftforashorttime,especiallyatarailwaystation.A.shouldB.canC.mustD.willB情态动词练习2.How___yousaythatyoureallyunderstandthewholestoryifyouhavecoveredonlypartofthearticle?A.canB.mustC.needD.mayA3.—Theroomissodirty.___wecleanit?—Ofcourse.A.WillB.ShallC.WouldD.Do4.MyEnglish-Chinesedictionaryhasdisappeared.Who___havetakenit?A.shouldB.mustC.couldD.wouldBC5.—IsJohncomingbytrain?—Heshould,buthe____not.Helikesdrivinghiscar.A.mustB.canC.needD.mayD6.—Iheardtheywentskiinginthemountainslastwinter.—It____truebecausetherewaslittlesnowthere.A.maynotbeB.won’tbeC.couldn’tbeD.mustn’tbeC7.Ithasbeenannouncedthatcandidates__remainintheirseatsuntilallthepaperhavebeencollected.A.canB.willC.mayD.shall8.—Ihearyou’vegotasetofvaluableAustraliancoins.___Ihavealook?—Yes,certainly.A.DoB.MayC.ShallD.ShouldDB9.Oh,I’mfeelingwellinthestomach,I___somuchfriedchickenjustnow.A.shouldn’teatB.mustn’thaveeatenC.shouldn’thaveeatenD.mustn’teatC10.Iwasreallyanxiousaboutyou.You___homewithoutaword.A.mustn’tleaveB.shouldn’thaveleftC.couldn’thaveleftD.needn’tleaveB11.Youcan’timaginethatawell-behavedgentlemen___besorudetoalady.A.mightB.needC.shouldD.would12.—Writetomewhenyougethome.—____.A.ImustB.IshouldC.IwillD.IcanCC13.Mr.Bushisontimeforeverything.How___itbethathewaslatefortheopeningceremony?A.canB.shouldC.mayD.mustA14.—AreyoucomingtoJeff’sparty?—I’mnotsure.I___gototheconcertinstead.A.mustB.wouldC.shouldD.mightD15.MysistermethimattheGrandTheatreyesterdayafternoon,sohe___yourlecture.A.couldn’thaveattendedB.needn’thaveattendedC.mustn’thaveattendedD.shouldn’thaveattendedA16.Sorry,I’mlate.I___haveturnedoffthealarmclockandgonebacktosleepagain.A.mightB.shouldC.canD.willA17.Therewasalotoffunatyesterday’sparty.You___come,butwhydidn’tyou?A.musthaveB.shouldC.needhaveD.oughttohaveD18.—WhencanIcomeforthephotos?Ineedthemtomorrowafternoon.—They___bereadyby12:00.A.canB.shouldC.mightD.needB19.—IstayedatahotelwhileinNewYork.—Oh,didyou?You__withBarbara.A.couldhavestayedB.couldstayC.wouldstayD.musthavestayedA20.Thefirespreadthroughthehotelveryquicklybuteveryone___getout.A.hadtoB.wouldC.wasabletoD.couldC