The three major parts of a Greek play are: Prologue, Chorus, and Act.
Prologue - a monologue or a dialogue preceding the entrance of the Chorus
Chorus - present's the tragedy's topic
Act - where characters are presented and interact with each other and with the Chorus
<span>The perfect form is the verb tense used to indicate a completed, or "perfected," action or condition. Verbs can appear in any one of three perfect tenses: presentperfect, past perfect, and future perfect. Verbs in the perfect form use a form of "have" or "had" + the past participle.</span>
I can answer you only 2 of these questions
One of the causes for America's 2009 economic crisis was the invention of subprime mortgages, for 'second class' clients, who previously did not have access to credits, but the innovation of securitizing these mortgages arose, clients paid only interest the first years, making the quotas lower, but the interest rates were variable and then they were increasing and the salaries were being eaten by those payments, the central bank allowed the rules of the game to be changed, because of the crisis that was coming, this left thousands of Americans unemployed and without homes. In all this the government did not intervene favorably, on the contrary, after a while it helped the financial system to recover, but no citizen could do it.