10. A sky safety system can help cars to _______ traffic jams and crashes. A. use B. have C. prevent D. take 11. People won’t use flying cars the year 2050. A. before B. after C. during D. until 12. Is the most serious problem? A. pollution B. polluted C. pollute D. pollutant 13. We believe that urban transport pods can travel around 30kph. A. with B. at G. in D. on 14. She cooking in the kitchen at 7 PM tomorrow. A. will B. is C. will be D. be 15. We will use more energy in the future. A. solar B. sunny C. sun D. sunlight 16. Alternative sources of energy developed in the near future. A. has been B. will be C. is D. was 17. Which of transport do you think will be used in the future? A. mean B. meaning C. meanings D. means 18. We are looking for types of vehicles that help us to avoid . A. traffic B. traffic jams C. rush hours D. walking 19. What should we do to electricity? A. take B. cut C. save D. waste 20. Low energy light bulbs should be used to electricity. A. convert B. save C. spend D. buy