Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions :
Fossil fuels are used to generate the majority of the world’s energy, and they come in different forms. For example, coal may be burned in a power (1)_________ to generate electricity, but gasoline is burned in a car’s engine to make it run. Neither of these two sources is considered green energy because they produce a lot of pollution when they are burned. In addition, they come from a source that is inevitably going to (2)__________. Green energy can be defined as any energy source that is to some degree nonpolluting. When it is called (3)__________, this means that a person can replace the same amount of energy that was consumed by that person (4)__________ that person’s lifetime. Since it took millions and millions of years to create the fossil fuels that we now burn, we know that they cannot be replaced by us. Wind power and solar power, (5)__________ harnessed properly, are two excellent sources of green energy. Once the necessary parts such as wind turbines to generate wind power and solar panels to create solar power have been produced, only the pollution from the production is left.
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Lời giải:
Báo saiGiải thích: Mệnh đề quan hệ rút gọn: “When harnessed properly” = “When they are harnessed properly”.
Tạm dịch: Năng lượng gió và năng lượng mặt trời, khi được khai thác đúng cách, là hai nguồn năng lượng xanh tuyệt vời