"Loudly Knocking at the door" he demanded admission.
"Loudly Knocking at the door" he demanded admission. Correct Answer Adverb phrase
An adverb phrase is simply a group of two or more words that function as an adverb in a sentence. Just as an adverb can modify a verb, adjective or another adverb, an adverb phrase of more than one word can further describe a verb, adverb, or adjective.