单项选择题

Passage1 Questions1to5arebasedonthefollowingpassage. Thepassengersonthebuswatchedsympatheticallyastheyoungwomanwiththewhitecanemadeherwaycautiouslyupthesteps.Shepaidthedriverandthen,usingherhandstofeelthelocationoftheseats,settledintoone.Sheplacedherbriefcaseonherlapandrestedhercaneagainstherleg. IthadbeenayearsinceSusan,thirty-four,becameblind.Astheresultofamedicalaccidentshewassightless,suddenlythrownintoaworldofdarkness,anger,frustrationandself-pity.AllshecouldclingtowasherhusbandMark. MarkwasanAirForceofficerandhelovedSusanwithallhisheart.Whenshefirstlosthersight,hewatchedhersinkintodespairandhebecamedeterminedtouseeverymeanstohelphiswife. Finally,Susanfeltreadytoreturntoherjob,buthowwouldshegetthereSheusedtotakethebus,butshewasnowtoofrightenedtogetaroundthecitybyherself.MarkvolunteeredtoridethebuswithSusaneachmorningandeveninguntilshegotthehangof(摸清情况)it.Andthatwasexactlywhathappened. Fortwoweeks,Mark,militaryuniformandall,accompaniedSusantoandfromworkeachday.Hetaughtherhowtorelyonherothersenses,specificallyherhearing,todeterminewhereshewasandhowtoadapttohernewenvironment.Hehelpedherbefriendthebusdriverswhocouldwatchoutforher,andsaveheraseat. Eachmorningtheymadethejourneytogether,andMarkwouldtakeataxibacktohisoffice.Althoughtheroutineofgoingbackandforthwascostly,MarkknewitwasonlyamatteroftimebeforeSusanwouldbeabletoridethebusonherown. Finally,Susandecidedthatshewasreadytotrythetriponherown.Mondaymorningarrived.Beforesheleft,sheembracedherhusbandtightly.Hereyesfilledwithtearsofgratitudeforhisloyalty,hispatience,andhislove.Shesaidgood-byeand,forthefirsttime,theywenttheirseparateways.Monday,Tuesday,Wednesday,Thursday...Eachdayonherownwentperfectly,andawildgaiety(快乐)tookholdofSusan.Shewasdoingit!Shewasgoingtoworkallbyherself!.

Thepassagecanbeusedasanexampleof______.

A.honesty
B.sympathy
C.diligence
D.determination