1. I (go) to work by bus but now I drive my car to work. 2. Joe and I (like) each other but now we are best friends.
3. Sue (fancy) rock music but now she is a fan of it.
4. (you/catch) fireflies when you were a child?
5. My father (smoke) a lot but he gave up three years ago.
6. My student (be) very bad at Math but now he improves a lot.
7. This doctor (be) famous but now everyone knows him.
8. Jane (break) the speed limit and a police officer stopped her.
9. My aunt (work) as a nurse before she retired.
10. My hometown (have) an amusement park but the authorities have opened one

go

liked

fancies

did you catch

smoked

was

was

broke

worked

had

the rhetoric device being used to persuade the audience is pathos.

normally working animals are domesticated and ruled by a master, a domesticator (tamer), to perform basic and important functions on a farm, for example. the value used in this context is animal labor in exchange for food. it is not so much a contrast to the story told by napoleon and the pigs, since the animals of that particular farm also performed functions on the farm through domestication. the only thing is that in this case, who rules them is a pig, also an animal, but very respected, to whom the other animals lent him submission. that's about a strong relationship of dependency between animal and owner.