Is it hungry?
Yes, it is.
Are they sad?
No, they aren't
Is it funny?
Yes, it is.
Is she sleepy?
Yes, she is.
Are they friends?
Yes, they are.
Is she happy?
No, she isn't
Is she a teacher?
Yes, she is
Is he three years old?
No, he isn't
Are they students?
Yes, they are.
Are they happy?
Yes, they are.
Is she a singer?
No, she isn't