Read the text about Midnight City. Choose the correct answer (A, B, or C). (Đọc đoạn văn về thành phố Midnight. Chọn đáp án đúng (A, B hoặc C).)
MIDNIGHT CITY
At the moment, Midnight City gets over 50% of its energy from non-renewable sources. Twenty percent of its energy comes from coal. It's cheap to use, but it (1) a lot of pollution. It also gets 28% of its energy from nuclear power plants. Nuclear power is clean to run. However, it can be very dangerous. Midnight City also gets 9% of its (2) from natural gas. Natural gas causes some (3) and it is non-renewable. Midnight City could stop using these non-renewable sources and start using (4), renewable energy sources. Solar panels need a lot of sun, but it isn't very sunny in Midnight City. Solar power would not be a good choice. Midnight City is next to a large river and it is very windy there. Wind power (5) hydropower could both be good choices for the city.