Hi,
I see you've copied some of the things I've said. While you're welcome to do so, please make sure you understand what I said (you probably do, but I thought to point it out). Also, there are some things I wrote in this thread that I wouldn't advise you to put into the assignment.
"reader's/listener's": I'd choose one and stick with it. Reader is probably more natural.
"
This is an odd question, since poetry works on syllables and sounds rather than letters. Since the rhyme is [...i:p] in the last stanza, the repeated letters that are most obvious would be: "e" (as "ee", sounding [i:]; it also appears in "lovely" or "promises", but the letter sounds differently there) and "p". It's true that the letter "o" is also repeated a lot, but it sounds differently in "woods", "to", "lovely" and "promises". "
I'm not sure if this is an appropriate answer to the question. How does your teacher react if you criticise the question? Finally, "It's ture that the letter 'o'..." is a direct reply to your original answer and makes little sense without it. I wouldn't keep it like that. I wish I could be of more help, but as I said, I'm not sure about the question.
About the final line: What if the teacher asks you what the "profound effect" looks like? What would you answer?
"because he has too many responsibilities to fulfill": Correct. 