Question

有关于强调句省略问题who is making so much noise in the garden?——____ the children

——Who is making so much noise in the garden?
　　——____ the children.
　　A. There are B. They are C. That is D. It is

我知道答句是强调句 it is the children who are making so much noise的省略,但是这里为什么要看做是省略句?那问句是强调句吗?如果不是,为什么回答要用强调句呢?

还有人说it 是和 who 呼应 这是什么意思 不理解

Answer 1

——Who is making so much noise in the garden?
——____ the children.
　　A. There are B. They are C. That is D. It is
选项是D
It指代Who is making so much noise in the garden这件事。
又如：
------Who is nocking at the door?
____It's me.