question: he then returned to rome and was appointed dictator.
Capitalize this past sentence correctly.
A: He then returned to Rome and was appointed dictator.

question: what is harder to see or suspect is that a third party existed and actively promoted the quarrel.
Capitalize this past sentence correctly.
A: What is harder to see or suspect is that a Third Party existed and actively promoted the quarrel.

question: the vietnamese side i would not like to touch anymore (only posts and comments).
Capitalize this past sentence correctly.
A: The Vietnamese side i would not like to touch anymore (only posts and comments).