To do I think I hope this helps
He and Stella boarded a train bound for Pittsburgh, Pennsylvania.
OR
They boarded a train bound for Pittsburgh, Pennsylvania.
Abigail is making excuses to Parris saying there is no jobs in the town.
This is an example of parallelism.
Parallelism is repeating grammatical constructions in the same way.
For example, the statement: "I came, I saw, I conquered" is parallel because each segment is NOUN + VERB (past tense). If it were written: I came, I saw, I was conquering" then the statement would not be parallel.