Asonecomestosomecrossroads,heorsheseesasignwhichsaysthatdrivershavetostopwhentheycometothemainroadahead.Atothercrossroads,drivershavetogoslow,buttheydonotactuallyhavetostopunless,ofcourse,thereissomethingcom

　　Asonecomestosomecrossroads,heorsheseesasignwhichsaysthatdrivershavetostopwhentheycometothemainroadahead.Atothercrossroads,drivershavetogoslow,buttheydonotactuallyhavetostopunless,ofcourse,thereissomethingcomingalongthemainroad;andatstillothers,theydonothaveeithertostoportogoslow,becausetheyarethemselvesonthemainroad.

　　MrWilliams,whowasalwaysaverycarefuldriver,wasdrivinghomefromworkoneeveningwhenhecametoacrossroad.Ithada“SLOW”sign.Hesloweddownwhenhecametothemainroad,lookedbothwaystoseethatnothingwascoming,andthendroveacrosswithoutstoppingcompletely.

　　Atonceheheardapolicewhistle(口哨声),sohepulledintothesideoftheroadandstopped..Apolicemanwalkedovertohimwithanotebookandapeninhishandandsaid,“Youdidn'tstopatthatcrossing.”

　　“Butthesigntheredoesn'tsay‘STOP’.”answeredMrWilliams,“Itjustsays‘SLOW’,andIdidgoslow.”

　　Thepolicemanlookedaroundhim,andalookofsurprisecameoverhisface.Thenheputhisnotebookandpenaway,scratched(抓)hisheadandsaid,“Well,I'minthewrongstreet!”

　　10.MrWilliamswasdriving____oneevening.

　　A.toapartyB.tohisofficeC.homeafterworkD.toworkfromhome

　　11.Whenhewasstoppedbyapoliceman,he____.

　　A.wasdrivingatahighspeedB.wasdrivingontothemainroad

　　C.wasgoingtostophiscarD.wasdrivingslowly

　　12.Thoughslowly,MrWilliamscontinueddrivingatthecrossingbecause____.

　　A.hedidn'tseeany“STOP”signthereB.hepaidnoattentiontothetrafficrules

　　C.hedidn'thavetostopD.hewaseagertogethome

　　13.LookingroundMrWilliams,thepolicemanwassurprisedbecause____.

　　A.hemetamadmanB.herealizedthathehimselfwasmistaken

　　C.MrWilliamsdaredtospeaktohimlikethatD.MrWilliamswouldnotapologizetohim