This is a/These are
These are pencils.
This is a/These are
These are rulers.
This is a/These are
This is a pencil case.
This is a/These are
This is a book.
This is a/These are
This is a tree.
This is a/These are
These are rubbers.
This is a/These are
This is a seal.
This is a/These are
These are chairs.
This is a/These are
These are dolphins.
This is a/These are
This is a parrot.
This is a/These are
These are snakes.
This is a/These are
These are flowers.
This is a/These are
This is a crab.