If you know how to kill a mockingbird

How does the poem's mood and tone change in each of these stages of “o captain! my captain! ” by walt whitman? (i need an answer asap )

Write a précis of "from 'on the duty of civil disobedience'" paragraph 1 by henry david thoreau.

Must read story will give if ! in “perseverance,” which theme is reflected in the lines, “life’s field will yield as we make it / a harvest of thorns or of flowers”? a: life is a field in which flowers and thorns will grow. b: accept what you are given, because you cannot change it. c: your life is the result of the work you put into it. d: working together people achieve their goals in life.