Is it a ruler?
No, it isn't. It's a snake.
Is it a rubber/eraser?
Yes, it is.
Can she play basketball?
Yes, she can.
Is it a backpack?
Yes, it is.
How many students are there?
twelve students
Are they erasers?
No, they aren't. They're books.
Can he draw?
Yes, he can.
What can she do?
She can sing.
Can the dog swim?
Yes, it can.
Is is a calculator?
Yes, it is.
Are they scissors?
Yes, they are.