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 from 31 to 35. ALTERNATIVE ENERGY SOURCES...

* Hướng dẫn giải

Đáp án D

Thông tin trong bài: "First of all, it is water… Not only does water spin a wheel, but wind can do so as well… Solar energy is often thought to be sunlight." (A, B, C là các nguồn năng lượng thay thế)