What is this?
it's a pen.
What are these?
These are bookcases.
What is this?
This is a laptop.
What is this?
This is an umbrella.
What are these?
These are chairs.
What are these?
These are pencils.
What are these?
These are windows.
What is this?
This is a backpack?
What is this?
This is a screen.
What is this?
This is a clock.