So here are the answers!
1. Left
2. had trekked
3. had visited
4. couldn't
5. bigger
The first three are in psst tense because the events did not happen just now, and could wouldn't make sense for number 4, and number 5, and biggest is not a word.
Answer:D. Clear Organization To Help Audience Follow Along
Explanation:
it is troublesome because there's some people who just cant handle the black uprising war