Young people are not to stand and look at works of art; they want art they can participate

问题补充：

Young people are not to stand and look at works of art; they want art they can participate in.

A. content

B. generous

C. confident

D. conservative

答案：

(答案→)A. content

B. generous

C. confident

D. conservative

解析：形容词辨析。A满意的；B慷慨的；C有信心的；D保守的；结合句意可知A正确。句意：年轻人不满足于站在那里观看艺术作品，他们想做一些他们能参加的艺术。