A)1. Are
2. Is
3. Are
4. Is
5. Are
6. Is
7. Is
8. Are
9. Are
10. Is
11. Are
12. Is
13. Are
14. Are
15. Is
16. Is
17. Is
18. Are
19. Is
20. Is
B)
1. Are Oana and Dana sisters?
Oana and Dana aren't sisters
2. Is the boy my best friend?
The boy isn't my best friend.
3. Are dogs his favorite pets?
Dogs aren't his favorite pets
SI TOT ASA, DUPA MODEL, FACI MAI DEPARTE!!!!
C)1. Has
2. Have
3. Has
4. Have
5. Has
6. Have
7. Have
8. Has
9. Has