We should protect the environment for plenty of fresh air to good health.A. adjustB. con

问题补充：

We should protect the environment, for plenty of fresh air to good health.

A. adjust

B. contributes

C. distributes

D. attributes

答案：

A. adjust

(答案→)B. contributes

C. distributes

D. attributes

解析：词义辨析. A.调整;适应 B.贡献;出力 C.分配;散布 D.认为……属于。根据题意，我们应该保护环境，因为大量的新鲜空气有助于身体健康。故选B。contribute to有助于……。