Put words in correct form:
1. Solar energy is renewable (plenty) ............... and clean.
2. Soalr power can be used to (hot) ............. or cool our houses.
3. Electricity, gas and water are (need) ............. in Western countries.
4.There has been some (reduce) .............. in unemployment recently.
5. There are lots of technological (innovate) .............. designed to save energy.
6. I switched the light off to save (electric) ..............
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Sinh Học lớp 12
