Canadianschoolbusesarecalled"thesafestschoolbusesintheworld"．Alltheschoolbuses，whichareindeepyellow，havethesamestyle．Schoolbusdrivershavetoreceivestricttrainingbeforegettingdriver'slicenses

　　Canadianschoolbusesarecalled"thesafestschoolbusesintheworld"．Alltheschoolbuses，whichareindeepyellow，havethesamestyle．Schoolbusdrivershavetoreceivestricttrainingbeforegettingdriver'slicenses．

　　Whenaschoolbusrunsthroughthecityandcarrieschildrentoastop，thedriverwillturnontheredlightandthenshowthesign"Stop"．Atthistime，allthevehicles（车辆） followingtheschoolbusmuststopasiftheymetaredlight．Afterallthechildrengetonoroff，theschoolbuswilldriveaway．Thenothervehiclescangoon． ManypeoplewillthinkofcartoonsassoonastheytalkaboutJapaneseschoolbuseswhichareusuallyinpinkorblue．Foralongtime，cartoonpicturesonschoolbuseshavealreadybeenpopularandbecomemodelsofJapaneseschoolbuses．WhenchildrenseepinkHelloKittyorblueDoraemon，noonewillrefusetogotoschoolanymore．

　　OnJapaneseschoolbuses，there'salwaysaheadmancaringforkids．Ifsomethinghappenssuddenly，theheadmanwilltellparentsaboutitassoonaspossible．31．WhatcolorareCanadianschoolbuses？___

　　A．Red B．Yellow C．Pink D．Blue

　　32．Fromthepassage，weknowthat___．

　　A．Canadianschoolbusesmusthaveaheadman

　　B．Canadianschoolbusesshouldfollowothervehicles

　　C．Japaneseschoolbusesmaylookcuteforstudents

　　D．Japaneseschoolbusdriverscangetlicenseseasily

　　33．Thepassageiswrittenmainlyto___．

　　A．introduceschoolbusesinCanadaandJapan

　　B．suggestschoolschoosingbetterschoolbuses

　　C．encouragestudentstostudyinCanadaandJapan

　　D．askstudentstoobeytrafficrulesallthetime．