Cloze Test: Bison have not always lived in North America, they are relative newcomers. They belong to the Bovidae family, like  . . . (A) . . . cows and the wild buffalo of Africa and Asia. The oldest known bison fossils . . . (B) . . . in China and Himalayan foothills, where an animal with all the essential features of the group lived a million years ago. They grew . . . (C) . . . and spread over most of the northern hemisphere in Europe and Siberia. During one of the Ice Ages, the wildlife of Asia and North America began to combine. Very early, the steppe bison moved eastward to the North American . . . (D) . . .  . Much later, men followed the same route.  cloze test (A):