题目内容：

分析一句话英语的句子成分
We should keep them informed of what is going on here.
这句话到底是informed做宾语补足语还是informed of后面所有的这一堆做宾语补足语,为什么?
能不能理解成informed of what...过去分词短语做them后置定语?
比如这个句子
This is a artist privileged to visit the gallery.
We should make the artist privileged to visit the gallery.
第一句翻译成后置定语还成,第二句翻译成后置定语就不爽,但是他到底能不能也理解成后置短语?同样是名词＋过去分词短语.
有明白的给解释下这些东西
We should keep them informed.单看也是完整的，of后面一堆没用了？