填空 Some day little cars may take the place of today's cars.  If everyone 1 such alittle carin the future, there will be less pollution in the air, there will be more parking spaces in  cities, and the streets will be 2 crowded.  The space now for one car of the usual size can hold 3 one such little car. The little cars will 4 muchless to own and to drive.Driving will be 5 ,too,because these little cars can go only 50 kilmetres an hour. The cars of the future will be fine for going 6 the city,but they will not be useful for going far away. The little car needs only two batteries(电池)-ore battery for the motor, and 7 for the horn and the rights. If  we still 8 the big cars along with the small ones,we will need to 9 two kinds of roads.  Some roads will be used 10 the big fast cars,and other roads will be needed for the small,slower ones. (     )1. A. drives (     )2. A. more (     )3. A. at most (     )4. A. pay (     )5. A. faster (     )6. A. over (     )7. A. another (     )8. A. think (     )9. A. build (     )10. A. to B. sits B. less B. no more B. spend B. harder B. around B. one B. use B. put B. as C. makes C. much C. less than C. cost C. safer C. from C. theother C. park C. found C. for D. sells D. fewer D. more than D. have D. moredangerous D. past D. others D. love D. open D. in