A.
1. is
2. is
3. is
4. are
5. is
6. is
7. are
8. are
9. is
10. sre

B.
1. prepearing
2.hunting
3. eating
4. coming
5. making
6. eating
7. singing
8. chasing
9. running
10. drinking

C
1. not
2. is
3. lounging
4. is raining
5. not
6. are
7. are not walking
8. not
9. are
10. is not barking

D.
1. Am ... cooking?
2. Is ... baking?
3. Are ... eating?
4. Is ... raining?
5. Are ... making ... ?
6. Are ... coming?
7. Is ... baring?
8. Is ... talking?
9. Is ... laughing?
10. Are ... sleeping?