Câu hỏi :

The word “it” in paragraph 4 refers to.............

A. being a pioneer

B. getting the energy

C. being off-grid

D. giving up a 21st century lifestyle

* Đáp án

C

* Hướng dẫn giải

Dẫn chứng: There is no doubt that being off-grid has its problems, and it is not always the cheapest way to get the energy you need. Even so, pioneers like Perez have proved that it can be done

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