Answer:
The appositive phrase in this sentence is the one between commas <em>"the messiest room in the house"</em>
Explanation:
An appositive phrase provides more information, renames or identifies the previous noun or noun phrase. In this case it identifies <em>Gordon´s room</em> as the <em>messiest room.</em>
The following sentence is written correctly:
B. The drum major performed badly because she forgot the routine.
<u>Why not A, C or D?</u>
A. The team played <u>good</u> in their championship game so they won. The word<em> good</em> should be replaced with the word<em> well</em>. An adverb describes a verb, the word well would describe how they played. Good is an adjective that describes a noun.
C. Ivan feels<u> well</u> about his choice to join the after-school program. The word <em>well</em> should be replaced with the word <em>good.</em> Whenever, one says someone is feeling well it refers to their health.
D. The gymnast felt<u> badly</u> because they had skipped breakfast. The word <em>badlly</em> should be replaced with the word <em>bad</em>.
Nikita is the only witness to see you doing it but she made it up
To prove your innocence you would have to been with other people they would serve as witness saying you didn't do it even when you know you didn't in order to prove your innocence.
I'm not sure if it answers your question