1)Diana= subject 2)gave= verb 3) George= direct object 4)shoulder= object compliment 5)at the party= pep phrase. hope that's what you're looking for.
The subordinate clause is "you must start researching now"
Probably depressing and gloomy
Yes, it is true that in story-telling, the conflict generally produces a struggle leading to a sequence of events resulting in suspense or excitement, although this conflict can take different "shapes" and develop as the characters try to solve it.
Maybe try zooming in a little more :)