II. Choose the option that best completes each blank in the passage. Write A, B, or C in the blank.
Nothing to Lose
We (1) fossil fuels in our daily life, but they are limited and cause pollution. A lot of scientists are working hard to look for some lossless and environmentally (2) sources of energy.
Solar energy is not new to us (3) we use it to dry things every day. Solar panels catch sun rays and change them into electricity. We know that it is renewable because the sun never stops producing sunlight.
Wind power is also an old source of energy. In the past, explorers used wind for sailing their (4) to distant lands. A single windmill can pump water and generate electricity. To get much more power all at once, people install lots of giant wind turbines on wind farms.
If we stop using fossil fuels, our planets will be (5). There is nothing to lose when we use solar energy or wind power.
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