What is it?______ a pen.

How old are you?

Is it a board? Yes,____ is.

Is it a book? No, it _____.

It's a picture.

Is it a desk? No,it_______.

It's a chair.

Is it a classroom? Yes,it _______.

Is it a crayon? Yes,_____ is.

What is it? ______ a glue.

Is it a zebra? Yes,it ______.