1.) "it" & nominative
"it" could be either nominative or objective depending on it's context in the sentence. In this case it's nominative because it acts as a subject.
2.) I have no idea ¯\_(⊙_ʖ⊙)_/¯
3.) True
4.) "near the park" & adjective since it describes the location of the school
5.) "during class" & adverb since it describes when they play.
6.) coordinating conjunctions are your everyday FANBOYS
for, and, nor, but, or, yet, so
7.) You may have fried chicken for supper, or you may have roast beef.
This sentence contains two independent clauses combined by the coordinating conjunction "or" which is preceded by a comma. The last sentence option does this too, but the coordinating conjunction joining the two clauses just doesn't make sense with the context of the sentence.
8.) So idk much about interjections, but I think they're supposed to be used like this: "Ack—my cat is going nUts...aGAin." "Ack" is supposed to be the interjection.
