Read the sentence.

kev’s keen insights and comments impressed the judges throughout the debate.

which word completes the sentence with the most positive connotations?
inept
astute
adequate
satisfactory

The answer is: astute.

Astute can only hold positive connotations and it means that someone or something portrays a capacity to notice certain properties or characteristics conducive to a sharp, well-defined, clever, and clear comprehension of a given context or circumstance where judgment and skill are required or demanded. An astute comment would be one that presents the characteristics just mentioned.    

it ends with a marriage, but also with prospero giving up his power.

the tempest is a play written by william shakespeare between 1610-1611, it narrates the story of prospero a magician that sets a storm to wreck a ship, this sets the story to kill the king of naples. while it is a romantic style play, it isn´t traditional because of the ending, it end with the marriage and the magician giving up his powers.

what are you asking? this is gibberish.