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Finish the following sentences using a preposition:
1. Renewable energy sources can be reformed naturally in a short period of time. They are not used .up.. when the energy is exploited.
2. Using coal as a major energy source is not a good idea. It's running .out..
3. Biogas system is introduced ..to. poor people because it supplies people ..with. electricity.
4. Garbage is burned .to.. produce steam ..for. making electricity or to provide heat ..to. industries and home.
5. The new crop of corn takes .up.. the carbon dioxide ..from. the air to reduce air pollution.
There are different forms of energy (1)_____ heat energy, sound energy, light energy, electric energy and so on.
Energy can be transformed from one into another in different ways. For example, electric energy becomes (2)_____ energy in the radio set or become light energy in the TV set. But energy can neither be finished off nor be produced. This is called the law of (3)_____ of energy.
It is important for us to make use of energy. Expanding gases can be used to run a machine or to make airplane (4)_____ in the air. Heat from the sun and water power can be controlled. And atomic energy can be used to do many things. We are now doing our best in making use of energy in our (5)_____ construction.
Câu 1: A. like B. such as C. such D. as
Câu 2: A. light B. sound C. atomic D. heat
Câu 3: A. preservation B. Conservation C. protection D. formation
Câu 4: A. fly B. to fly C. flying D. flies
Câu 5: A. national B. nationalize C. nation D. nationally
Đáp án: A