.Three high school students started a website in order to__________.
A) attract greater public attention to their needs.
B) appeal to the public for contributions and donations.
C) expose officials who neglected their duties.
D) keep people properly informed of the crisis.
的D选项的informed做的是什么成分。为什么后面要加of,还有of的右边是个名词crisis,右边不也应该接名词吗,怎么接过去分词。。