ctvctvctvctvctvctv 19. _____ car is so dirty I can't even tell what color it is.,A. Your B. Yours C. Hers D. Ours,20. When the cat saw the dog, it stopped in _____ tracks.,A. my B. its C. his D. hers,21. I think we_____ have electric taxis very soon.,A. may B. might C. will D. would,22. With teleportation, you disappear at a place, and then_____ in another place,seconds later.,A. appears B. appeared C. reappear D. reappears,23. Every day over1,000 new cars add to the city and the city of over 20 million people,is getting more and more______.,A. expensive B. famous C. difficult D. gridlocked,24. My brother and I often come to school _____ foot.,A. at B. in C. by D. on,25. Skycycling tubes will be easy_____.,A. drive B. to drive C. ride D. to ride,26. The white cat is Helen's, and the black cat is_____.,A. my B. I C. mine D. of mine,27. We try to make the future green by using vehicles or kinds of energy that,are_____.,A. environmentally friendly B. environment friendly,C. environmentally friendship D. environmental friendly,28. This is Linda's hat, and those shoes are_____, too.,A. her B. hers C. our D. their,29. It will be_____ to ride a jet pack in bad weather because it doesn't have a roof.,A. enjoyable B. pleasant C. unpleasant D. comfortable,30. A sky safety system can help cars to_____ traffic jams and crashes.,A. prevent B. have C. use D. take,31. People won't use flying cars_____ the year 2050.,A. before B. after C. during D. until,32. Is_____ the most serious problem?,A. pollution B. polluted C. pollute D. pollutant,33. We believe that urban transport pods can travel around 30kph.,A. with B. at C. in D. on,34. Do you think the_____ price will increase next month?,A. fossil fuels B. gases C. fuel D. natural gases,35. We will use more_____ energy in the future.,A. solar B. sunny C. sun D. sunlight,36. A jet pack doesn't_____ a lot of space.,Trar

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{"userId": 5393987, "userName": "Trầm Hồ "}19.a