Where is the book?
The book is on the sofa.
Where is the dog?
The dog is under the box.
Where is the dog?
The dog is on the box.
Make a sentence - A COMPUTER
There is a computer on the table.
make a sentence - A TENNIS RACKET
There is a racket under the bed.
Where is the dog?
The dog is in the box.
Make a sentence - A BED
There is a bed in the bedroom.