1) Are Billy and Marcus chatting with their friends? a) Yes, we are. b) Yes, they are. c) Yes, they is. d) Yes, you are. 2) Is Jenny going to the library? a) No, she isn't. b) No, she is. c) No, they aren't. d) No, he isn't. 3) Are you and your family having dinner? a) Yes, you are. b) Yes, we aren't. c) Yes, they is. d) Yes, we are. 4) Is the boy listening to music? a) Yes, he am. b) Yes, we are. c) Yes, he isn't. d) Yes, he is. 5) Are Ian and Vanessa studying for a test? a) No, they aren't. b) No, they are. c) No, whey aren't. d) No, we aren't.

3.3 Grammar

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