( ) 1. A. It's swinging. ( ) 2. A. She's happy. ( ) 3. A. She cleaned the room. ( ) 4. A. Yes, it is. ( ) 5. A. Mary. ( ) 6. A. Yes, there are. ( ) 7. A. Beijing. ( ) 8. A. No, she doesn't. ( ) 9. A. Spring. ( ) 10. A. 160cm.
B. It's jumping. B. He's happy. B. She went hiking. B. No, he isn't. B. Have a fever. B. No, there aren't. B. By train. B. Yes, she does. B. Winter. B. 162cm.
C. It's flying. C. I'm happy. C. She is helpful. C. Yes, he is. C. Mary's brother. C. Yes, there is. C. Yes. C. Yes, she is. C. Season. C. 158cm.
