THE AUTHOR MENTIONS THE SOURCES OF ENERGY SUCH AS WIND, STEAM, PETR...

câu 44: - Đề KSCL Tiếng Anh 11 lần 3 năm 2018 – 2019 trường Nguyễn Viết Xuân – Vĩnh Phúc -
Tiếng Anh Đề KSCL Tiếng Anh 11 lần 3 năm 2018 – 2019 trường Nguyễn Viết Xuân – Vĩnh Phúc -
Câu 44: The author mentions the sources of energy such as wind, steam, petrol in the first paragraph to _____. A. discuss which source of energy can be a suitable alternative to electricity B. suggest that electricity should be alternated with safer sources of energy C. emphasize the usefulness and adaptability of electricity D. imply that electricity is not the only useful source of energy