The annual Energy & Environment Conference calls on our human beings to environmental issues.
A. care for
B. care of
C. care about
D. care in
网友回答
A. care for
B. care of
(答案→)C. care about
D. care in
解析：考查词组：四个选项中A是照顾，喜欢，想要，C是关心，BD都是错误的，句意：每年的能源和环境会议号召人类关心环境问题。选C。