课时提能练(三十八)Unit4Publictransport课时作业A:基础层面Ⅰ
语境语法填空APeopleusedto1
be_conveyed(convey)fromoneplacetoanotherbybusesandtrains
However,nowadaysmoreandmorefamilieshavetheirowncars,which2
speeds(speed)upthedevelopmentofournationaleconomyandmeanwhileresultsinmoretrafficjams
What'sworse,somedriversviolatetrafficrules,suchasdrunkanddrivingandspeakingontheirphoneswhile3
driving(drive),whichleadstomoreaccidentsandmoredeaths4
arising(arise)fromtheaccidents
Onlywhenpeoplehaveput5
throughthepaincantheyrealizethatitisuptothemall6
to_ensure(ensure)thatroadsaresmooth
Atthesametime,moreandmorepeoplebegintotakebusestogoout,whichcanpickupanddropoffpeopleatdifferentstopsintheroute
BTheLondonUndergroundhasthedistinctionofbeingthe1
oldest(old)andmostcomplexundergroundsystemintheworld
Beforetheinitialtunnelsw