OnedayMozartsawanoldblindstreet-performerplayingtheviolinatthestreetcorner.Herecognizedtheoldmanwasplayingoneofhiscompositions.Theoldmanplayedforsometimebutthehatinfrontofhimwasstillempty----nobodyhadputan

　　OnedayMozartsawanoldblindstreet-performerplayingtheviolinatthestreetcorner.Herecognizedtheoldmanwasplayingoneofhiscompositions.Theoldmanplayedforsometimebutthehatinfrontofhimwasstillempty----nobodyhadputanymoneyintoit.Mozartaskedtheoldman,“DoyouoftenplaycompositionsbyMozart”“Yes,sir.”repliedtheoldman.“NoweverybodyknowsMozartandlikeshismusic.”74“Doyoumakealivingbyplayingtheviolin”Theoldmansaidhedid.Mozarttookovertheviolinfromtheoldmanandbegantoplay.

　　75.Heplayedsowellthatallthepassers-bystoppedtolistentothewonderfulmusicandsoontheoldmanwasfullofadmirationandfeltsurprisedthatamancouldplaysowell.HeaskedMozart,“Whoareyou,sir?”“Yourcolleague(同事),apoormusicianlikeyou.”ThenMozartgavetheviolintotheoldmanandwentaway.

　　A.根据短文内容回答下列问题

　　69.WhatdidMozartseeinthestreet?

　　70.Whywasthehatinfrontofhimstillempty?

　　71.Whosecompositiondidtheoldmanplay?

　　72.Allthepassers-bywereinterestedinthemusicthatMozartplayed,weren’tthey?

　　73.DidtheoldmanrecognizeMozartatlast?