These natural disasters have warned us that everyone should start to protect the immediately.
A. amusement
B. development
C. environment
D. government
网友回答
A. amusement
B. development
(答案→)C. environment
D. government
解析：考查名词辨析。句意：这些自然灾难已经警告我们每个人应该立即开始保护环境。amusement 娱乐，development 发展，environment环境，government政府，故选C。