请给出为什么选某一选项的解释,1.Heactedinallkindsofplays,buthewas____hisbestincomedy.a.inb.onc.offd.at2.Noneofuslikethosenewrules,butwehaveto_________it.a.liveonb.livewithc.liveuptod.livethrough3.Themay

　　请给出为什么选某一选项的解释,

　　1.Heactedinallkindsofplays,buthewas____hisbestincomedy.

　　a.in

　　b.on

　　c.off

　　d.at

　　2.Noneofuslikethosenewrules,butwehaveto_________it.

　　a.liveon

　　b.livewith

　　c.liveupto

　　d.livethrough

　　3.Themayorreassuredthecitizensthathewouldtryhisbestto

　　_________thecityafterthemurder.

　　a.clearup

　　b.cleanup

　　c.dryup

　　d.sweepup

　　4.Iknowalotaboutbasketball,but_________baseballIcouldsaynothing.

　　a.whencomingto

　　b.whencomesto

　　c.comingto

　　d.whenitcomesto

　　5.Thecommittee_________tenmenandthreewomenwilldiscussthisproblemtonight.

　　a.consistedof

　　b.consistingof

　　c.composingof

　　d.makingupof

　　6.IttookJackalongtimeto_________thefactthathecouldneverbecomeafamouswriter.

　　a.comeupwith

　　b.cometotermswith

　　c.comeupto

　　d.comethrough

　　7.Lastweek,Tomwas_________forcriticismbyourteacher.a.singledout

　　b.pickedout

　　c.workedout

　　d.figuredout

　　8.Thebuildingofthenuclearpowerstationhastobe_________becauseofthelocalcitizens’protestagainstit.

　　a.setoff

　　b.setdown

　　c.setback

　　d.setup

　　9.Theproposal_________buildinganewlibrarywasputforwardby

　　sevenmembers.

　　a.asto

　　b.asof

　　c.asfrom

　　d.ason

　　10.It’shardtofindany_________slopinthishillyarea.

　　a.empty

　　b.hollow

　　c.bare

　　d.open