The third one:
“I can’t wait to be old enough to vote,” said Felipe,
He was seeking Utnapishtim, the only human being who was granted eternal life by the gods.
It's simile. It compares the dog to a bulldozer to make it more dramatic.
I think its pronoun but I am not sure
Because through satire, he makes an allegory criticizing the model of totalitarian society, more specifically of the Soviet Union created by the Stalinist regime. In the case of "Rebellion on the Farm," he does so through a fable, in which parallels are represented in the animals
In this way, we can understand the corruption, betrayal and lies towards the people that existed during Stalin's dictatorship in the Soviet Union.