.The Red Army more than 25 000 li and arrived at North Shanxi at last.A. walkedB. ranC. c

问题补充：

.The Red Army more than 25,000 li and arrived at North Shanxi at last.

A. walked

B. ran

C. covered

D. travel

答案：

A. walked

B. ran

(答案→)C. covered

D. travel

解析：考查词义辨析，walked 步行，ran 跑，covered 覆盖，走了多远的距离，travel 旅行，句意：红军走了两万五千里最后到达了陕西北部。所以选C。