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¡¡ Some day little cars may take the place of today’s cars. If everyone ¡¡£¨1£©¡¡such a little car in the future, there will be less pollution in the air, there will be more parking space 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£© much less to own and to drive. Driving will be  £¨5£©, too, because these little cars can go only 50 kilometers an hour.