Are they taking a picture?
No, they aren't. They are laughing.
Is she giving him a pencil?
Yes, she is giving him a pencil.
Is he cutting a paper?
Yes, he is cutting a paper.
Are they practicing?
Yes, they are practicing.
Are they gluing a paper?
No, they aren't. They are cutting a paper.
Are they laughing?
Yes, they are laughing.
Is he teaching children?
No he isn't. He is resting.
Is she eating?
No she isn't. She is cooking.