Is it a pencil?
No, it isn't. (x)
Is it a book?
Yes, it is. (V)
Is it a computer?
Yes, it is. (V)
Is it an apple?
No, it isn't. (x)
Is it a rubber?
Yes, it is.(V)
Is it a desk?
No, it isn't. (x)
Is it a pen?
Yes, it is.(V)
Is it a ruler?
No, it isn't. (x)
Is it yellow?
No, it isn't. (x)
Is it blue?
Yes, it is.(V)
Is it green?
Yes, it is.(V)
Is it red?
No, it isn't. (x)
