【Bobwasclever,butheneverworkedhardathislessons.“ImustmakeBobworkmoreandplayless,”hisfathersaidtohimself.“ImustletBobknowIcareverymuchabouthisstudies.”Sohewrotedownsomequestions.HewasgoingtoaskBobtwo】

　　Bobwasclever,butheneverworkedhardathislessons.“ImustmakeBobworkmoreandplayless,”hisfathersaidtohimself.“ImustletBobknowIcareverymuchabouthisstudies.”Sohewrotedownsomequestions.HewasgoingtoaskBobtwoorthreequestionseachday,anddecidedtobeginwiththequiteeasyones.ThateveningwhenBobcamehomefromschool,hisfatherbroughtupthefirstquestion,“Bob,”saidhisfather,“howmanylettersarethereinthealphabet?”“Idon’tknow.”Bobsaid.“Youdon’tknow?”thefatherlookedunhappy.“Youstartedschooltwoyearsago,andyoudon’tevenknowhowmanylettersthereareinthealphabet?”“Isthatsurprising?Well,letmeaskyouaquestion,Dad.Youstartedtoworkinthepostofficefiveyearsago,didn’tyou?”“Yes?”Bob’sfatherwasconfused(迷惑的).“Thencanyoutellmehowmanylettersthereareintheletter-boxoverthere?”判断正误（）Hisfatherthoughtheplayedtoomuchanddidn'tstudyhard.Sohedecidedtohaveatalkwithhim()Bobknewthereare26lettersinthealphabet.