Prepositional phrase lacks either a verb or subject. It comprises a preposition and a noun, or preposition and a pronoun. It can also act as an adverb or adjective. Adverb phrase refers to the group of words which qualifies adjectives, verbs or adverbs. Adjective Phrase refers to the modification of noun or pronoun in a sentence with group words.
Therefore, by rewriting the above paragraph by using the prepositional phrases in a manner that encourages sentence variety within the paragraph:
In front of the office building, the construction workers demolished the concrete with jackhammers. Throughout the city, people could hear the racket. The workers were smart; they wore earplugs. The people working in offices around the construction site wanted earplugs, too.
