PartIVReadingComprehension(1*10=10%)Directions:Thereare2passagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.YoushoulddecideonthebestchoiceandblackenitontheAnswerSheet.Passage1ItwasMonday,andMrs.Smith’sdogwashungry,buttherewasnotanymeatinthehouse.Consideringthattherewasnobetterway,Mrs.Smithtookapieceofpaper,andwrote:“Givemydoghalfapoundofmeat.”Thenshegavethepapertoherdogandsaidgently,“Takethistothebutcher,andheisgoingtogiveyouyourlunchtoday.”Holdingthepieceofpaperinitsmouth,thedograntothebutcher’s.Itgavethepapertothebutcher.Thebutcherreaditcarefully,recognizeditwasreallythelady’shandwritinganddidashewasasked.Thedogwasveryhappy,andatethemeatupimmediately.Atmidday,thedogreturnedtotheshop.Itgavethebutcherapieceofpaperagain.Afterreadingit,hegaveithalfapoundofmeatoncemore.Thenextday,thedogcameagainexactlyatmidday.Andasusual,itbroughtapieceofpaperinitsmouth.Thistime,thebutcherdidnotlookatthepaper,andgavethedogitsmeat,forhehadregardedthedogasoneofhiscustomers.But,thedogcameagainatfouro’clock.Andthesamethinghappenedagain.Tothebutcher’sfurthersurprise,itcameforthethirdtimeatsixo’clock,andbroughtwithitathirdpieceofpaper.Thebutcherfeltabitpuzzled.Hesaidtohimself,“Thisisasmalldog.WhydoesMrs.Smithgiveitsomuchmeattoeattoday?”Lookingatthepieceofpaper,hefoundthattherewerenotanywordsonit!51.WhenMrs.Smithfoundtherewasnomeatinthehouse,she____________.