— People should spare no efforts to protect the environment.
— . Air pollution does harm to our health.
A. All right
B. Take it easy
C. Go ahead
D. Exactly
网友回答
A. All right
B. Take it easy
C. Go ahead
(答案→)D. Exactly
解析：考查交际用语：句意：--人们应该不遗余力的保护环境。--确实是，空气污染对我们的健康有害。A. All right好的，B. Take it easy放轻松，C. Go ahead请便，D. Exactly确实是，选D。