This is / These are
These are glues.
This is / These are
These are papers.
This is / These are
This is a glue.
This is / These are
These are backpacks.
This is / These are
This is a board eraser.
This is / These are
This is a pen.
This is / These are
This is a book.
This is / These are
These are colored pencils.
This is / These are
These are pencils.
This is / These are
These are chairs.
This is / These are
These are notebooks.
This is / These are
This is a chair.
This is / These are
This is a sharpener.
This is / These are
These are crayons.
This is / These are
These are erasers.
This is / These are
This is a pencil.
This is / These are
This is an eraser.
This is / These are
These are backpacks.
This is / These are
This is a backpack.
This is / These are
This is a door.
This is / These are
This is a marker.
This is / These are
This is a ruler.
This is / These are
This is a clock.
This is / These are
This is a ruler.
This is / These are
This is a notebook.
This is / These are
This is a board.
This is / These are
This is a pencil.
This is / These are
This is a board.
This is / These are
These are books.
This is / These are
This is a paper.
This is / These are
These are markers.