根据短文内容及首字母提示完成短文Itiswellknownthatmanismuchclevererthananyanimal.Butwhichisthec______amongtheanimals?Somescientistst______itshouldbeAlex,anAfricangreypar-rot.Heisunlikeanyotheranimals.Heca

　　根据短文内容及首字母提示完成短文

　　Itiswellknownthatmanismuchclevererthananyanimal.Butwhichisthec______amongtheanimals?Somescientistst______itshouldbeAlex,anAfricangreypar-rot.Heisunlikeanyotheranimals.Hecanreallyt______withpeople.

　　whenhesays"Comehere",Hereallyw______someonetocomeuptohim.

　　"Alexisascleverasac_____oftwoorthreeyearsold,''saysDrPepperberg."Hedoesnotjustrepeatthes______hehasbeentaugut.Heu______thewords!''

　　Alexcantellaboutfiftyd_____things,namesevencoloursandcountfromonetosix.

　　Istheparrotactuallythinkinginthew_____howmandoes?Nobodycansay.Buttheq____isveryinteresting.