Adverbial clause is an adverb which is a dependent clause. It's used as an adverb in a sentence to show the time, contrast, conditions, place, reason, concession, purpose or result.
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Every summer, many Americans happily attend baseball games in stadiums.
Adj. Noun Adj. Noun Adv. Verb Adj. Noun Prep Noun
Answer:
I'm confused I'll answer your question but is there an article or passage that goes along with the plot diagram because if not I have nothing to go on.
Grim melancholy would be the answer
