题目内容：
根据以下材料，回答题TherewasaGreekshopkeeperinasmallconnershopinLondon.Shetaughtmeaboutthe41ofanactofkindness,whichhasmotivatedmetogive.
OnthedayIwenttothatshop,Iwas42 withaveryhighfever.!hadbeenoffworkfordaysandIhad43outoffood.BecauseIhadbeenworkingsohardsinceIhad44totown,Ialsohadnofriends whocouldhelp.
SoIwentouttogetsomefood.45,Iwouldhavegonetothesupermarket,butonthis46,IwentintotheGreekshopbecauseitwascloser.I 47afewthings,fromthelooksofwhichrevealed
the48thatIlivedalone.ThenI49themtotheshopkeeper,whotoldme,"Youareunwell."I50rathershyly.ShepointedatthethingsIwasbuyingand51."Icanmakeyouasandwich,soyou
don'thavetodoityourself.
So,shemadethesandwichandaskedmeto52 amoment.Shewentinthebackroomandreappearedwithacontainerofhotsoup."Itwill53youup,"shesaidwithasmile.
Whatreallywarmedmeup,_54,wasnotthesoup.Itwasher55 thattoldmeshecared.HerkindnessmademefeelcaredforwhenIwasparticularly56 Andit 57me.Itmademewanttobe
as58 astheshopkeeper.Ihadbeenquiteshy,but,fromthatdayon,Ididnotletshynesspreventmefrom59 randomactsofkindness.
Iwasdeterminedto60 thejoy...andIhaven'tfeltlonelysince!
A．lesson
B．method
C．power
D．cause
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答案解析：