From London to New York,from Hong Kong to Moscow,subways are an  important 46 of transportion(运输).Traffic in  47  cities is often quite heavy,and it can sometimes 48 hours to cross  a busy city in car or bus.Subways  49 solve that problem,because they 50 at traffic  lights,and hundreds of people can 51 a subway train together.In larger subways systems(系统),such as Mexico  City’s,52 lines that go far beyond the city center.53,people living in the suburbs can take a train to work.This reduces(减少)the traffic entering and leaving a city.It  54 helps reduce air pollution,a big problem in many cities.At last,subways are usually cheaper.In fact,in a city  55  a subway,everybody wins !

46.A.road        B.way         C.place

47.A.small       B.big         C.more

48.A.spend       B.cost         C.take

49.A.help       B.can’t        C.need

50.A.have to stop   B.don’t have to stop  C.needn’t to stop

51.A.by        B.take         C.get

52.A.have       B.there are       C.there have、

53.A.In this way    B.By the way      C.On the way

54.A.both       B.too          C.also

55.A.0f        B.in          C.with

 0  133148  133156  133162  133166  133172  133174  133178  133184  133186  133192  133198  133202  133204  133208  133214  133216  133222  133226  133228  133232  133234  133238  133240  133242  133243  133244  133246  133247  133248  133250  133252  133256  133258  133262  133264  133268  133274  133276  133282  133286  133288  133292  133298  133304  133306  133312  133316  133318  133324  133328  133334  133342  447090 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网