【SocialworkerCathyHeyingnoticedagrowingtendencyamongthehomelessandunemployedpeoplesheservedfornearlyadecadeatSt．Stephen'sCatholicChurchinMinneapolis．"Atleasttwiceaweek，someonewouldmentioncartroubleasareas】

　　SocialworkerCathyHeyingnoticedagrowingtendencyamongthehomelessandunemployedpeoplesheservedfornearlyadecadeatSt．Stephen'sCatholicChurchinMinneapolis．"Atleasttwiceaweek，someonewouldmentioncartroubleasareasonformissingajobinterviewornotgettingthekidstodaycare，"saysCathy，44．"IthoughtifIcouldoffercarrepairs，Icouldpreventtheseproblems．"SoinDecember2012，withlittlemoreautomotiveexperiencethanmakingsmallchangestoimproveherownmotorcycle，Cathysignedupforamechanics（机械学）program．Aftertwoyearsoftakingafull-timecourse，Cathyobtainedapart-timedegreeinautotechnologyfromDunwoodyCollegeofTechnology．

　　ThensheopenedtheLift，anonprofitgarageofferingaffordablecarrepairforneedypeople．"Ihadnomechanics，novolunteers，andonlyafewtools，"saysCathy．Sheoperatedfromapartlyclosedareainafriend'sgarage．Butshemadeitwork．

　　OneofCathy'sfirstcustomers，LindaGranger，wasunemployedwhenhersocialworkerreferredhertotheLift．Her20-year-oldpickuptruckhadanewheater，timingbelt，andbrakesfixedbyCathyandavolunteerfor600total，whichLindaispayingoffin20monthlyinstallments．Thesamerepairswouldhavecostatleast$1，800atatypicalgarage．

　　"There'snowayIcouldhaveaffordeditotherwise，"saysLinda．

　　"It'sbeenahardjourneyfromsocialworkertomechanic，"saysCathy．"Butcomparedwithotherpeople'sstruggles，Ihavenothingtocomplainabout．"

　　21．WhatmotivatesCathyHeyingtoopentheLift？___

　　A．Thecartroubleofthehomelessandunemployed．

　　B．Tenyearsofhardworkwithpoorpeoplelikeher．

　　C．Thegrowingtendencyofmorejobinterviews．

　　D．Thejoyofgettingthekidstodaycareinhercar．

　　22．Theunderlined"it"inPara.3mostprobablyrefersto___．

　　A．apartlyclosedarea

　　B．afriend'sgarage

　　C．theLift

　　D．freecarrepair

　　23．Linda'sexperiencewasmentionedinthepassagetoshowthat___．

　　A．Cathyhelpedherfixthetruck

　　B．theLiftdidmanagetohelptheneedy

　　C．hertruckdidneedathoroughrepair

　　D．a