阅读理解.Iclosedmyeyesastightastheycouldgo.Thelightswentoff,andIunboltedthedoorofmemory.Irememberdrivinghomebymyselfforthefirsttime.IlookedintothefutureandimaginedthatIwaswalkingonthestageto

　　阅读理解.

　　Iclosedmyeyesastightastheycouldgo.

　　Thelightswentoff,andIunboltedthedoorofmemory.Irememberdrivinghomebymyselffor

　　thefirsttime.IlookedintothefutureandimaginedthatIwaswalkingonthestagetoreceivemycollege

　　diploma.Ilookedatthebleacherspackedwithfamiliesandfriends.Isawmyparentssmilewithpride,

　　andIlookedtotheirsideforKatieandKevin'sapproval.ButKatie,myeldersister,wasnotthere.I

　　cou7ldholdbackmytears.

　　Isuddenlyopenedmyeyesandreturnedtoreality.IrememberbeingcalledoutofSpanishclassin

　　thetenthgradeandtakentothehospitaltoseeKatie,whowasdyingofcancer.Katie'sroomwas

　　exactlythewayshehadleftitonaFridaynightinSeptember,1993,whenshewasgotintotheambulance.ShediedjustafewweeksinherfreshmanyearattheUniversityofMiami.

　　WhenKatiewassixyearsold,shedeclaredherselfoldenoughtotakecareofherlittlesisterand

　　brother,becauseshewantedtolightenourmother'sburden.Katiewouldalwaysdoupmyhairand

　　goshoppingwithme.ShewouldalwaystutorKevinandbuyhimicecreamasarewardforhishard

　　work.Clearly,Katiewasmorethanoureldersister.

　　Adiplomaisplacedinmyhand."Ido"Icry.Katiesaidshelovedmeandhuggedmetightona

　　Septemberafternoonin1993.justbeforeIstepupmycollegeauditoriumstage,Ilookatthespectators

　　inthebleachersandseemother,fatherandKevin.Katieissittingrightbesidethem,cheeringmeon.

　　1.Whatdoestheunderlinedword"unboltedmean?A.Opened

　　B.Closed

　　C.Held

　　D.Ruined2.Whentheauthorrecalledhereldersister,shewasmostprobably__.Adrivingbacktoherhome

　　Btakingarestinherbedroom

　　C.lookingathercollegediploma

　　D.drivingforhercollegegraduation3.Wecanlearnfromthepassagethattheauthor'ssisterdied___.A.motlongaftersheentereduniversity

　　B.onaFridaynightinSeptember,1993

　　C.whentheauthorwasabouttofinishhighschool

　　D.whenthea