Are these biscuits?
No, they aren't.
Is this an egg?
No, it isn't.
Is this an apple?
Yes, it is.
Are these bananas?
Yes, they are.
Are these drinks?
Yes, they are.
Is this a yogurt?
Yes, it is.
Is this a pear?
No, it isn't.
Is this a sandwich?
No, it isn't.