WE SHOULD PARTICIPATE IN THE MOVEMENTS ________TO CONSERVE THE NAT...

11. - 25 DE THI HOC KI 1 MON TIENG ANH LOP 12 CO DAP AN
25 DE THI HOC KI 1 MON TIENG ANH LOP 12 CO DAP AN

11.

We should participate in the movements ________

to conserve the natural environment.

A. organized

B. which organize

C. are organized

D. organizing