runs the fastest in the world.A. The cheetah B. The white sharkC. The tigerD. The manatee

问题补充：

runs the fastest in the world.

A. The cheetah

B. The white shark

C. The tiger

D. The manatee

答案：

(答案→)A. The cheetah

B. The white shark

C. The tiger

D. The manatee

解析：The cheetah猎豹；The white shark 白鲨；The tiger老虎；The manatee 海牛。结合常识，可知猎豹是世界上跑得最快的动物。故选A。