EXERCISE 3I. CHỌN TỪ/ CỤM TỪ THÍCH HỢP (ỨNG VỚI A, B, C, D) ĐỂ HÒAN TH...

37. Why is the giant panda an endangered species?A. Because reserves in China’s Sichuan Province are demolished.B. Because some bamboo species die out.C. Because they have not enough food to eat.D. Because of the lack of conservation effort.