Which fragment is made up of a complete predicate?

What is the most likely reason schlosser uses a direct quotation in this example excerpt from fast food nation

Which two sentences are written in subjunctive mood? take this money and go buy some clothes for yourself. i was happy because i passed the test, which i studied for. if only my umbrella would fix itself, then i could go out in this weather. i'm going on a trip to canada, but i'm not taking you with me. if i were the thief, i would have turned myself in before i got caught.

In about one hundred words, discuss two ways through which an author can show how a theme develops. consider how themes reveal culture.