Is she surfing?
Yes, she is.
Is she playing hockey?
No, she isn't.
Are the boys reading a book?
No, they aren't.
Is the girl drinking water?
No, she isn't.
Are you and your classmates playing soccer right now?
No, we aren't.
Are they running?
Yes, they are.
Are they playing basketball?
Yes, they are.
Is she listening to music?
Yes, she is.
Are you watching TV?
No, I'm not.
Are Paul and John playing the guitar?
No, they aren't.
Is he swimming?
No, he isn't.
Are you studying English now?
Yes, I am.