Correct answer choice is :
<h2>1) Bravely stand up for what is right.</h2><h2 /><h2>Explanation:</h2><h2 />
Democracy is a theme for this poem because he asks for his right and liberty as an American citizen despite his color, Hughes wants similar treatment both lawfully and ethically throughout his own country. Langston uses these tools to more advance his idea of an ideal democracy, where everybody is equal.
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Number one would be Overnight. Number two would be Last. Number three would be either Before or The Holidays but I am 99.9% sure it is "Before". Number four would be Unlocked. Number five would be Due. A modifier is a word that without the word the sentence would have a different meaning, from my experience :)
They describes the third person.
Yes, the "iron curtain" indeed refers to the imaginary boundary dividing Europe into two separate areas from the end of WWII in 1945 until the end of the Cold War in 1991. These two separate areas are Soviet Union and its satellite states from Western Europe.