Is he shouting?
Yes, he is.
Is he riding a bike?
No, he isn't.
Is he riding a bike?
Yes, he is.
Is he flying?
No, he isn't.
Is she dancing?
Yes, she is.
Is she walking?
No, she isn't.
Is she crying?
Yes, she is.
Is she crying?
No, she isn't.
Are they walking?
Yes, they are.
Are they going to school?
No, they aren't.
Are you swimming?
Yes, I am.
Are you swimming?
No, I'm not.
