V. Write the correct form or tense of the verbs in brackets.
1. Humans ___________________(fuse) the power of moving water for more than 2,000 years.
2. I’ll call you at 8 o’clock tonight. What ____________(you/do) then?
3. At present, global demand for energy__________(increase) rapidly.
4. Three years ago. we____________9install) a solar water heating system on our roof
5. What _____________(happen) if non-renewable resources run out?
6. A small hydropower plant_________________(build) on the river in ten years time. .
7. If the electricity________________(make)from wind turbines, it is green.
8. Burning fossil fuels ________________(emit) gases that are harmful to the environment.
9. We decided___________(invest) our time and effort on this new research project
10. You should avoid _______________(use) cars or motorbikes for short trips.
Giải thích giúp mik luôn nha
I. Write the sound /e/ or /eI/ of the underlined letter(s)
1. train / / 2. seatbelt / / 3. mistake / / 4. helmet / / 5. way / / | 6. left / / 7. ahead / / 8. station / / 9. helicopter / / 10. pavement / / | 11. sail / / 12. safety / / 13. railway / / 14. brake / / 15. pedestrian / / | 16. healthy / / 17. plane / / 18. great / / 19. record / / 20. said / / |