Humans are cutting down the forests to the land for other uses.A. clearB. destroyC. cover

问题补充：

Humans are cutting down the forests to the land for other uses.

A. clear

B. destroy

C. cover

D. protect

答案：

(答案→)A. clear

B. destroy

C. cover

D. protect

解析：词汇辨析。clear “清晰的，清楚的”； destroy “破坏”； cover “覆盖”； protect “保护”；又根据句意“人类为其他的用途而砍伐树木，破坏了土壤。故答案为A。