What is it?

• a pen

• a pencil

• a bag

• a chair

• an eraser

• a pen

• a ruler

• a pencil

• a door

• a window

• a chair

• a book

• a pen

• a pencil

• a chair

• a ruler

• a ruler

• a pen

• an eraser

• a bag

• a blackboard

• a window

• a door

• a notebook

• a chair

• a table

• a computer

• a sharpener

• a book

• a notebook

• a pen

• a ruler

• a chair

• a table

• a window

• a door

• a notebook

• a computer

• a window

• a eraser