Who just finished the marathon is tired is the subordinate clause, because it started with a relative pronoun, it is classified as a relative clause. "Just" is the subordinate conjunction and it is an adverb because it modifies the "finished" in the sentence to show immediacy.
Answer:
im not in school~ pay attention!~
Explanation:
The answer is 'a' tree-trees(regular)
All the others are irregular
ox-oxen
tooth-teeth
mouse-mice
Answer:
Cats' instead of cat's and levels instead of level's
Explanation: