Honestly, this is not something anyone else would be able to give you much help with. This an activity you have to do based on what you think about the poem. So there really isn't a write or wrong answer since it is your opinion. The only thing we can probably help you with is probably just proofreading your answer to see if it makes sense or has correct spelling and grammar. Sorry!
Hope I helped,
Darry
The repetition of the word knock, first of all, conveys a specific literary device which is called Alliteration. Here is the definition of alliteration: It is the appearing of the same, exact letter or sound at the starting point of adjacent or closely linked words. Secondly, the repetitious sound of knocking , conveys the knocking as continuous. Hope that this answers your question.
1. Propaganda
2. Anti-Semitism
3. Abolitionism
4. Abolitionism
5. The Civil War
Hopefully this helped and good luck.