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1. Cars of the futer will do less damage to the environment and will be equipped with better safety devices to limit the number of accidents and deaths.
2. Energies could be powered by a rubbish - fuelled reactor to make use of all the waste we produce.
3. Petrol may be replaced by fuel caells which separate hydrogen from oxygen in water.
4. Cars will have sensors to detect pedestrians and other cars will have air cushions.
5. Vehicles can ' take ' to each other to regulate flow , it means the end of traffic jams.
6. Cars powered by fuels cells are already being developed.
7. We will see this type of cars on the roads in twenty years.
8. Environment and safety improvements will be popular soon.
VI
56. B
57.A
58. B
59. A
60. C ( Mình hk chắc lắm)
61. C
62. A ( Mình hk chắc)
63. B
64. C
65. C
VIII:
71,72,74: True
73,75: False
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(https://sachhoc.com/bai-tap-tieng-anh-7-luu-hoang-tri-sach-file-dap-an)
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