There is / There are

There _____ a teacher.

There _____ an apple.

There _____ 2 books on the table.

There _______ a pencil case in my backpack.

There ______ balls under the table.

There _____ cats on the sofa.

There ______ a notebook next to the laptop.

There _____ 5 pencils in the pencil case.

There _____ a bed in my room.

There _____ sharpeners behind the pencil case.