A prepositional phrase can function in a sentence as _____.

an adverb phrase

a noun phrase

A prepositional phrase can function in a sentence as both an adverb phrase and a noun phrase.

To determine how a prepositional phrase functions in a sentence, you need to understand the different functions that prepositional phrases can have. A prepositional phrase consists of a preposition (such as "in," "on," or "at") followed by a noun phrase (which can be a single word or a group of words that function as a noun).

1. Adverb phrase: A prepositional phrase can function as an adverb phrase when it modifies a verb, adjective, or adverb in the sentence. For example:
- She ran in the park. (modifies the verb "ran")
- The movie was filmed in 3D. (modifies the adjective "filmed")
- He walked slowly in the rain. (modifies the adverb "slowly")

2. Noun phrase: A prepositional phrase can function as a noun phrase when it acts as the subject or object of the sentence, or when it functions as the object of a preposition. For example:
- In the morning is my favorite time of day. (subject of the sentence)
- She went to the store in a hurry. (object of the verb "went")
- They discussed the issue at length. (object of the preposition "at")

So, in answer to the question, a prepositional phrase can function in a sentence as both an adverb phrase and a noun phrase, depending on how it is used in the sentence.

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