That mountain in the distance forms part of the Rocky Mountains.
Those mountains in the distance form part of the Rocky Mountains.
This room is too small for our furniture.
These rooms are too small for our furniture.
This stack of compact discs belongs to William.
These stacks of compact discs belong to William.
That is Henry’s pen.
Those are Henry's pens.
That boy on the other side of the street is George’s brother.
Those boys on the other side of the street are George's brothers.
That letter on the table is for Ms. Thaler.
Those letters on the table are for Ms. Thaler.
This is my pen, not Sandy’s.
These are my pens, not Sandy's.
This exercise is easy.
These exercises are easy.
This is my chair.
These are my chairs.
This message is for you.
These messages are for you.
This car belongs to my father.
These cars belong to my father.
That purse on the table is Elizabeth’s.
Those purses on the table are Elizabeth's.
That office at the end of the hall is the administration office.
Those offices at the end of the hall are the administration offices.
That pen on the floor is Sarah’s.
Those pens on the floor are Sarah's.
That book is out of date.
Those books are out of date.