1) Is he hitting a ball? a) Yes, he is. b) No, he isn't. 2) Is he catching a ball? a) Yes, he is. b) No, he isn't. 3) Are they dancing? a) Yes, they are. b) No, they aren't. 4) Is he kicking a ball? a) Yes, he is. b) No, he isn't. 5) Are they singing? a) Yes, they are. b) No, they aren't. 6) Is he catching a ball? a) No, they aren't. b) No, he isn't. 7) Is she listening to music? a) Yes, she is. b) Yes, they are. 8) Are they riding their bikes? a) Yes, they are. b) No, they aren't. 9) Is she singing? a) Yes, she is. b) Yes, they are.

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