THE DEVELOPMENT OF WILDLIFE HABITAT RESERVES HELPS ______________....

20. The development of wildlife habitat reserves helps ______________. A. develop commercial trade and overhunting. B. save a large number of endangered species. C. enact laws to protect wildlife. D. make a list of endangered species. III. Đọc đoạn văn sau rồi trả lời câu hỏi bằng cách khoanh tròn A, B, C or D. It is difficult to know how many elephants once lived in the continent, but there may have been at least