Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Câu hỏi

Thanks_____ the new technology, our life expectancy now is much higher than before.

A. to

B. on

C. in

D. at

Đáp án
A. to

Câu hỏi thuộc Bài tập:

E11- GS- Review (after unit 5)