2. _____________ is the power that we get from the sun. *
A. Wind power
B. Nuclear power
C. Solar power
D. Solar panel
3. You can save money by ________ the lights before leaving the house. *
A. turning on
B. turning off
C. turning up
D. turning down
4. He suggests ____________energy-saving bulbs. *
A. to buy
B. buying
C. buy
D. should buy
5. After coming home, she cleaned the floor __________ cooked dinner. *
A. but
B. however
C. moreover
D. and
6. Vehicles also account __________air pollution. *
A. in
B. for
C. to
D. at
7. They worked hard to __________good crops from poor soil. *
A. products
B. production
C. produce
D.producing
8. The __________who repairs things like water pipes and baths. *
A. mechanic
B. engineer
C. plumber
D. musician
9. The air is polluted because there is too __________traffic. *
A. many
B. much
C. lots of
D. several
10. In order to save money, we should use public transport _________motorbike. *
A. instead of
B. except
C. besides
D. along with
