Peopleincommunitieshaveslowlybeenpushedapartthroughtheyears,mostlybecause peoplesimplyaren'ttakingthetimetosayasimple"hello".Afterconsideringthisphenomenon,IdecidedIwasgoingtochangethewayIwasdoingthings. My41cameonemorningwhenIwasinthecommunitylibrary.Ipassedbyagirlwho42herbooksoutofherlocker.Thinkinglikemostthatsomeoneelsewouldhelpherpickthemup,Icontinuedmyway.However,whenIhadto43becauseIstupidlyforgotmybook,Inoticedshehadjustfinishedpackingthemupbyherself.Noonehadstoppedto44her. "OK"Ithoughttomyself,"thisiswhereIshouldhavechanged." MybestopportunitycameafewdayslaterwhenIsawaman45byhimselfwaitingforthelibrarytoopen,soIsatdownnexttohimandbegana46.Itwasdifficulttogetstarted,andevenwhenIhadtosaygoodbye,almostevery47frommynewfriendhadatoneofdoubtinit.Andwhocouldblamehim? Peoplearen'tusedtomakingan48chatwithastranger.Butachange,nomatterhowdes-peratelyitisneeded,doesn'tjusthappen;ittakespeoplelikeustomakeitpossible.I49youtotakeasmallstepoutofyourcomfortzoneandtrytomakesomeone'sdayalitlebrighter,togeth-er,wecanreallymakesocietycome50asawhole. 阅读以上短文，回答161-170题。 第41题答案是__________
A.trouble B.doubt C.wish D.opportunity正确答案D
