单选题22.Theroomisinaterriblemess;it______cleaned.

单选题 All flights ______ because of the snowstorm

单选题33.Informationhasbeenreleased______moremiddleschoolgraduateswillbeadmittedintouniversitiesthisyear.

单选题 Compared with last year

单选题8.Maryaswellasherfriends______ChineseinChina.

单选题13.Yourexplanationisstillnoteasyenoughtounderstand.Couldyougiveany______examples?

单选题51.Thereasonwhytheychangedtheirmind______tousyet.

单选题8.Thegeneral'scommandwasthatthesoldiers______theplaceandcarryoutmoreimportanttasks.

单选题40.Lastyeartheadvertisingrate______by20percent.

单选题43.Thebooktellsusabouttheauthor'slife______aboutwritings.

单选题 If you stick to ______ the piano every day

单选题29.Therewerenotickets______forFriday'sperformance.

单选题 You ______ John in the street this morning

单选题 Professor Morison has never been to China

单选题 In learning English

单选题 We were caught in a traffic jam

单选题.NoauthorinAmericanliteratureisbetterknownormorelovedthanSamuelLanghorneClemens.BorninMissouriin1835,hegrewuponthebanksoftheMississippiRiverandusedthepennameofMarkTwainThetwonovelsbroughthimhisgreatestfame:TomSawyerandHuckleberryFinn.Anotherbook,LifeontheMississippi,toldofhisadventuresontheriverboatsofthatperiod.ItwasduringtheCivilWarthatMarkTwain'slifeasawriterstarted.AtthattimehewasworkingasanewspapermaninNevadaandCalifornia.Hisshortstory,"TheCelebratedJumpingFrogofCadaver'sCounty",wasanimmediatesuccessandhisnewlifebegan.In1870,MarkTwainmarriedOhiokingdom.Hehadfalleninlovewithherpictureevenbeforehemether.HiswifehadagreatinfluenceonTwain'slaterbooks.MarkTwainwasalsoaverysuccessfullecturer.Histravelsaroundthecountrygivingtalksondifferentkindsofsubjectshelpedmakehimfamousandincreasedthesaleofhisbooks.TomSawyerandHuckleberryFinnareconsideredTwain'sbestworks.Theyaremarkedbyhumorandsatireandprovidehisreaderswithanexcellentpictureofhistime.Hislastbookwascompletedin1909,oneyearbeforehisdeath.Hewasthen74yearsold.

单选题52.Ineedonemorestampbeforemycollection______.

单选题 We can't ______ his plan