1. We will use more _________energy in the future (solar/ sun/ sunny/ sunlight) 2. He looks forward __________her again. (meet/ to meet/ to meeting/meeting) 3. Her father was tired _________ doing gardening. (in/ on/ at/ of) 4. _________sources of energy is the source that can’t be replaced after use. (renewable/ Natural/ Effective/ Non-renewable) 5. We should put _________ on our roof for the heating and hot water. (solar energy/ equipment/ cracks/ solar panels) 6. Remember ___________the lights before going to bed. (turning on/ to turn on/ turning off/ to turn off) 7. This is……………smart vehicle;…………..is over there. A. her-our B. her-ours C. hers-ours D. hers-our 8. I think means of transport in the future………………petrol. A. aren’t using B. aren’t going to use C. won’t use D. won’t be using 9. At this time next month, we……………the new flying boat. A. are testing B. are going to test C. will test D. will be testing 10.Biogas is _____ and cheap for cooking and heating. (plenty/ abundant/ serious/ expensive)

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