Don’t you realize the these chemicals are doing to our environment?
A. shelter
B. track
C. damage
D. ouline
网友回答
A. shelter
B. track
(答案→)C. damage
D. ouline
解析：考查固定搭配和名词辨析。do damage to sb/sth对......造成伤害。句意：你难道没有意识到这些化学物质正在对我们的环境造成伤害吗？A居所；B踪迹，轨道；C伤害；D轮廓，提纲。故选C。