Let me explain ur question.
In the poem "And miles to go before I sleep", the poem suggests that we have a lot of things to do before we die, so we cannot just stop and watch a beautiful thing because we are wasting our valuable time. To emphasize on the point that we have to get well, the poet has repeated the last line of the poem.
Hope this is fine.
answer for you
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mla or modern language association style is commonly used language now a days to write in papers. we use language to write in the source of liberal arts and humanities.
mla text body is also called parenthetical citation. parenthetical citation is used in paper, web and dvd. it is a system of writing on paper, like whatever you are writing on a paper the title and the author's name will be in top on the paper. author's name entry will be in paraphrase.