Mark the letter A, B, c, or D to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each sentence.

Câu hỏi

Scientists are developing new sources of energy to protect the environment.

A. use

B. preserve

C. harm

D. waste

Đáp án
B. preserve

Câu hỏi thuộc Bài tập:

E7- GS- Unit 10- Practice (1)