英语短文改错,
Mr.Brownalwayscamebacktoworkverylate.Atthattimehiswifeandchildhasalreadygotsleep.Toavoidwakingthemup,heoftenusedhiskeytoopenthedoorandsteppedinquietly.Oneevening,hecamebackhefoundhiskeyswereleftintheoffice.However,hehadtopressthedoorbell,butitwasnoresponse.Hedressedagain,andnoresponseagain.Mr.Brownhadtoknockedatthewindowofthebedroomandshout,butstillnoresponse.Finallyhestoppedandwasthoughtforamoment.Thenhesaidinchildvoice,“Mum,Iwannagototoilet!”HespokeloudlybutMrsBrownwokeupatonce.一共有十处错误