Is it your new cat?
Yes, it is.
Is it Saturday?
No, it isn't.
Are they here?
No, they aren't.
Are they brothers?
Yes, they are.
Are you a teacher?
No, I'm not.
Is Alexa your sister?
No, she isn't.
Am I in this class?
Yes, you are.
Are you a student?
Yes, I am.
Am I a good dacer?
Yes, you are.
Is Mark in this school?
No, he isn't.