【题目】People nowadays are very about the problems with environmental pollution.
A. concerned; concerned B. concerning; concerned
C. concerning; concerning D. concerned; concerning
在线课程【答案】A
【解析】
考查形容词。句意：现在人们非常关心和环境污染有关的问题。第一空表示“关心”，是动词短语be concerned about,第二空表示“有关的”，用形容词concerned作定语。故选A.