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

We may help to control global warming by _______ carbon footprints in our homes.

A. putting up with

B. getting down to

C. cutting down on

D. going back to

Đáp án
C. cutting down on

Câu hỏi thuộc Bài tập:

E11- GS- Test for Unit 6 (2)