Why if someone is knocking at a door, do we say:
Who is knocking at the door? And the answer comes:
- It is me/him/her. Instead of saying: they are her/him/me.
On the other hands,
If someone is in my house, I would say:
- There is someone hiding in my house. please, get them out. Instead of saying : “get it out”.
What I want to know is:
Why do we use “it” as an anaphora for someone, in the first example?
However, we do use “them” as an anaphora in the second example given above?