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完形填空 Here are two cars.They may some day ---- the place of t

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完形填空 Here are two cars.They may some day ---- the place of today's big cars.If we use such cars in the ----,there will be less pollution in the air.There will be more ---- for parking cars in cities,and the streets will be less crowded.Three such cars park in the space that is needed for one of today's cars.
The little cars will be very cheap.They will be verysafe,too,because these little cars can go at a ---- of only 65 kilometers per hour.
The cars of the future will be fine for getting around a city,but they will not be useful for long trips.If the car is powered by eletricity,it will have two batteries---one battery for the motor and the other for thelights,signals,etc.If the little cars run on gasoline,they will go 450 kilometers before they need to stop for moregasoline.
If big cars are still used along with the small ones.We must ---- two sets of roads,one for the big ---- cars and the other for the ----,slow ones.
完形填空 Here are two cars.They may some day ---- the place of t
Here are two cars.They may some day 【take】the place of today's big cars.If we use such cars in the 【street】,there will be less pollution in the air.There will be more 【space】 for parking cars in cities,and the streets will be less crowded.Three such cars park in the space that is needed for one of today's cars.
The little cars will be very cheap.They will be very safe,too,because these little cars can go at a 【speed】 of only 65 kilometers per hour.
The cars of the future will be fine for getting around a city,but they will not be useful for long trips.If the car is powered by eletricity,it will have two batteries【with】one battery for the motor and the other for the lights,signals,etc. If the little cars run on gasoline,they will go 450 kilometers before they need to stop for more gasoline.
If big cars are still used along with the small ones. We must 【design】 two sets of roads,one for the big 【fast】 cars and the other for the 【small】slow ones.