What's this?
This is a book.
What's this?
This is a ruler.
What are these?
These are rulers.
What's this?
This is a sharpener.
What are these?
These are bags.
What are these?
These are books.
What are these?
These are pencils
What are these?
These are crayons.
What's this?
This is a pen.
What are these?
These are pencil cases.
What's this?
This is a rubber.
What are these?
These are rubbers.
What's this?
This is a pencil case.
What's this?
This is a pencil.
What are these?
These are scissors.
What's this?
This is a bag.