Explanation: a participle is a word formed from a verb and used as an adjective or a noun. In English participles are also used to make compound verb forms. The participle form of the verb "to do" is irregular and it is "done" so the correct answer is the corresponding to option D: has done. The complete sentence would be: The stranger has done this town a great service.
Based on the given question, the best answer for this would
be:
C. showing us his personality and goals.
The activities that were to given to Algernon was to show a
side of his personality to the readers wherein each challenge presented his
intentions and thoughts.
