There is a book in my bag.

There is a rubber in the pencil-box.

There is a pen in the pencil-box.

There are rulers in my bag.

There are pencils in the pencil-box.

There are copy-books in my bag

There are rulers in the box.

There are pencils on the table.

There is a doll on the chair.

There is a cat under  the chair.

There are chairs near the table.

There is a dog near the table.