()is thought to be good for people and society is necessary()

问题描述:

()is thought to be good for people and society is necessary()
A.What;to do B.It;to be done C.Whatever;to do D.Whichever;to be done
请帮忙分析下句子成分,还有所填的词语在句子中做什么成分,最好也可以翻译这句话..在这里先谢谢回答此问题的所有人

D吧.What is thought to be good for people and society 是主语,is necessary to be done是说需要被解决.整个句子是说,被认为对人类和社会有益的事情,需要得到解决.