Who is this?
This is a boy.
What is this?
It's a glue.
Who is this?
This is a girl.
What is this?
This is a pencil.
What is this?
It's a crayon.
What is this?
It's a door.
Who is this?
This is a teacher.
What is this?
This is a book.
What is this?
It's a chair.
What is this?
This is a classroom.
What is this?
It's a table.
What is this?
It's a paper.