Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
We should participate in the movements_________ the natural environment.
A. organizing to conserve
B. organized to conserve
C. organized conserving
D. which organize to conserve
Đáp án B
– movements organized to conserve (những động thái được tổ chức để bảo toàn …)