The plural form of "day" is...
days
The singular form of "fairies" is...
fairy
What is that?
That is a watch.
What are those?
Those are cars
What are these?
These are women.
What are those?
Those are people.
The plural form of "box" is...
boxes
The singular form of "children" is...
child
What is this?
This is a puppy.
The singular form of "people" is...
person
The plural form of "tree" is...
trees
The plural form of "wish" is...
wishes
The plural form of "puppy" is...
puppies
The singular form of "men" is...
man
What is this?
This is an apple
The singular form of "churches" is...
church
What are these?
These are pillows.
What is that?
That is a toy?