Wolves are very : they can live in forests on open plains or in the snows of the Arctic.

问题补充：

Wolves are very : they can live in forests, on open plains, or in the snows of the Arctic.

A. adaptable

B. adoptable

C. available

D. accessible

答案：

(答案→)A. adaptable

B. adoptable

C. available

D. accessible

解析：考查形容词：A. Adaptable可适应的，B. Adoptable可接受的C. Available可获得的，D. Accessible易接近的，句意：狼是适应性很强的，他们能生活在森林里，在空旷的平原，或者在北极的雪里。选A。