Who are these?
These are people.
Who is this?
This is a person/man.
Who is that?
That is a person/woman.
Who are those?
Those are men.
What is that?
That is a child.
Who are these?
These are children.
What is this?
This is a foot.
What are these?
These are feet.
What is this?
This is a tooth.
What are these?
These are teeth.
What is that?
That is a fish.
What are those?
Those are fish.
What is that?
That is a goose.
What are those?
Those are geese.
What is this?
This is a mouse.
What are these?
These are mice.
