22. Extinctions are natural, but humans have had a greater part in ______ animals populations.
(A) to destroy
(B) destroy
(C) to be destroyed
(D) destroying
22. Extinctions are natural, but humans have had a greater part in animals
populations.
(A) to destroy
(B) destroy
(C) to be destroyed
(D) destroying
修改成為
22. Extinctions are natural, but humans have had a greater part in ______ animals populations.
(A) to destroy
(B) destroy
(C) to be destroyed
(D) destroying