1- The words that most clearly suggest tragedy are: dim, hollow, creeping, darkening and grey.
All of these words usually help create a tense and dark tone to the story that would be useful for a tragedy.
2- The word that gives a formal tone is: C- Engage
Engage is not a word that would commonly be used in an informal sentence. Therefore, using it helps elevate the tone.
3- The correct answer is A.
Based on the context, the world "admonitions" seems to refer to friendly advice since its later contrasted with the evil and sinister guidances received by Dimmesdale.
4- The correct answer is B.
Being proficent means being competent in a skill. This means that the person has an advanced knowledge but is not yet a professional.
5- The correct answer is D.
The verb "concur" is used as a modifier for the verb "will run." However only adverbs can modify verbs. Therefore, "concur" should be changed for the adverb "concurrently."
6- The correct answer is D.
Research should be the first point when writing. Once we have an idea of the information available, we can start deciding which parts we want to address and how we are going to present it.