下列句子变为被动语态

They say that he is right.
_It is said that he is right.
Why haven't they done anything to end the match?
_Why hasn't anything been done to end the match?
What have people done about this?
_What has been done about this?

被动语态中,动作的执行者多可省略.
希望你能满意,祝你英语学习进步?

第一个不忘了,这种从句的好象是把主句变了就行
why anything haven't been done to zhe match by people ?
What have been done about this by people?

回答的不好见谅