1) Are they cooking dinner? a) Yes, they are. b) No, they aren't. 2) Is he singing? a) Yes, he is. b) No, he isn't. 3) Is he doing his homework? a) Yes, he is. b) No, he isn't. 4) Is she riding a bike? a) Yes, she is. b) No, she isn't. 5) Are they swimming? a) No, they aren't. b) Yes, they are. 6) Is your friend swimming? a) Yes, he is. b) No, he isn't. 7) Is John listening to music? a) Yes, he is. b) No, he isn't. 8) Is Mary playing the piano? a) Yes, she is. b) No, she isn't. 9) What is he doing? a) He's playing golf. b) He'd playing hockey. 10) What is she doing? a) She's singing. b) She's dancing 11) What are they doing? a) They're singing. b) They're playing the piano. 12) What is she doing? a) She's playing volleyball. b) She's playing basketball.

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