Answer:
They're going to the amusement park tomorrow.
Explanation:
The reason it's they're is because it's a contraction of they and are.
(a set of circumstances in which one finds oneself; a state of affairs)
I think it's B tell me if I'm wrong. I might be wrong so if I were you I would wait for other people to answer to.
A homophone is a word that sound alike but is spelled differently like "A BEAR is chasing me" and " Look at the BARE skined tree" so I don't think there is a homophone for myself. sorry