How many rubbers are there?
20
Where is the chair?
behind the desk
How many pencils are there?
12
How many rulers are there?
12
Where is the ruler?
in the pencil case
What's this?
a schoolbag
What's this?
a pen
Where is the book?
under the desk
What are these?
rulers
How many pens are there?
15
Where is the desk?
between the chairs
What are these?
notebooks
What's this?
a pencil