"Johnny was a famous football player in his high school, and Mike was a famous Soccer player in his high school (). One day Mike and Johnny got to talking. They both talked about how their sport is harder(). Both gave good points, yet both continued to say their sport was harder(). Eventually, they both agreed to try out the others sport to see which is harder(). They agreed to play the others sport for an entire season, then talk to each other and see which is harder(). Both had a lot of trouble at the practices, and both had a lot of trouble during their first games(). The second practices and games they didn’t do to bad, and as time went on they both gradually got started getting better and better(). At the end of the seasons both were just as good as the other in their original sports().

Once they started talking again once the season ended Johnny still believed football was harder, while Mike still said Soccer was harder(). After a while they eventually agreed that skate boarding was harder()."

Can someone help me identify these sentences? The choices I have to identify them are stated below. I have always had trouble with this and am unable to identify them myself.
"a prepositional phrase used as an adverb (prep=adv)
a prepositional phrase used as an adjective (prep=adj)
a gerund phrase (np)
a participial phrase (part)
an infinitive used as an adverb (inf=adv)
an infinitive used as an adjective (inf=adj)
an infinitive used as a noun (inf=n)
an appositive (app)
a compound sentence (compound)
a compound-complex sentence (compound-complex)"

If you can also possibly give any tips/advice for this to make it a bit easier that would greatly be appreciated.