EVERY TIME A FOREST IS CUT DOWN, MANY OF THE INSECTS WHICH LIVED ON...

8. - 70 DE THI CHUNG CHI B TIENG ANH
70 DE THI CHUNG CHI B TIENG ANH

8. Every time a forest is cut down, many of the insects which lived on the trees are also killed.

a. is cut down

b. many of the insects

c. lived

d. are also killed

 c