V.write the correct from or tense of the verbs in brackets.
1.I'll call you at 8 o' clock tonight.What_____(you/do) then?
2.Humans__________(fuse) the power of moving water for more than 2,000 years.
3.At present,global demand for energy______(increase) rapidly.
4.Three years ago,we_______9 install) a solar water heating system on our rof
5.What_____(happen) if non-renewable resources run out?
6.A small hydro power 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__________(usr) cars or motorbikes for short tríp
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Sinh Học lớp 12
