A
1. am going
2. is riding
3. are playing
4. is not singing
5. are not running
6. is not crying
7. are, swimming
8. is, sitting
9. is, smiling
B
1. She is jumping very high.
2. He is listening to music in his room.
3. They are painting a portrait.
4. I am cleaning a window.
5. Paula and Tim are dancing.
6. The bird is flying.
7. Our friends are not swinging.
8. My daddy is not reading a newspaper.
9. I am not eating a sandwich.
10. Are our parents watching TV?
11. Is he not walking his dog?
12. Is he throwing a ball?
13. Is she knitting a sweater?
14. Are you climbing a mountain?
15. Is your grandpa fishing?
16. Is it running very fast?
C
1. is
2. are
3. am
4. are
5. are
6. is
7. am
8. are
9. is
10. is
11. am
12. are
13. are
14. are
15. is
16. am
