make the sentence use plural & singular + - ? 1.sheep 2.roses 3.colleges

1) - Anna has a sheep in her farm
- Anna doesn't have a sheep in her farm
- Anna has a dozen sheeps in her farm
-Anna doesn't have a dozen sheeps in her farm

2) - My mom likes a white rose
- my mom doesn't like a white rose
- Susie and Laura love roses
-Susie and Laura don't like roses

3) - I applied to a bunch of colleges this year
- I didnt apply to any colleges this year
- Bobby is a college student
- Bobby is not a college student