Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate

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Đã trả lời bởi chuyên gia

· 13:59 10/08/2022

Đã trả lời bởi chuyên gia

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word that best fits each of the numbered blanks.

Wind is a clean source of renewable energy (2)_______ produces no air or water pollution. And since the wind is free, operational costs are nearly zero once a turbine is erected. Mass production and technology advances are making turbines cheaper, and (3)_______ governments offer tax incentives to spur wind-energy development.

Drawbacks (4)_______ complaints from locals that wind turbines are ugly and noisy. The slowly rotating blades can also kill birds and bats, but not nearly as many as cars, power lines, and high-rise buildings do. The wind is also variable: If it's not blowing, there's no (5)_______ generated.

(Adapted from <https://www.nationalgeographic.com/>)

Wind is a clean source of renewable energy (2)_______ produces no air or water pollution

A. who

B. that

C. why

D. when

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