Bây giờ, đọc và chọn đáp án đúng.) 1. What source of energy did people use the most in the late 19th century
b (trang 59 SBT Tiếng Anh 7 Smart World): Now, read and choose the answers. (Bây giờ, đọc và chọn đáp án đúng.)
1. What source of energy did people use the most in the late 19th century?
a. wood b. coal c. natural gas
2. When did oil become the most popular source of energy?
a. from 2000 b. before 1960 c. between 1960 and 2000
3. How much energy did we get from oil in the 1990s?
a. 37% b. 22% c. nearly 90%
4. What energy sources do we use most now?
a. coal and hydropower b. solar power and oil
c. coal, oil, and natural gas
5. What sources of energy are many countries switching to?
a. natural gas b. wind and solar power
c. hydropower and oil