III. WORD FORMATION (1.2 points)
Write the correct form of the words in brackets.(vt dạng đúng của từ)'
Today, we get a lot of energy from fossil fuels: coal, oil, and (17) __________ gas. But when we burn fossil fuels, they cause air (18) __________, and they are (19) __________. This means they will not last forever. In the long term, we will have to find alternative sources of energy. (20) __________ energy uses panels to catch sunlight and convert it into electricity. However, it doesn’t work at night and needs a lot of space. Wind power is another type of (21) __________ energy source. It’s cheap and produces clean energy, but wind turbines can be (22) __________ and some people think they look ugly.
17.(NATURE)
18.(POLLUTE)
19.(NEW)
20.(SUN)
21.(RENEW)
22.(NOISE)