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Which is a prepositional phrase?

1. polite but cool
2. twitching perceptibly
3. already immersed
4. within an hour


Sagot :

Final answer:

A prepositional phrase like 'within an hour' provides adjectival or adverbial modifiers in sentences.


Explanation:

Within an hour is the prepositional phrase. Prepositional phrases consist of a preposition and an object of the preposition, providing adjectival or adverbial modifiers in sentences. In this case, 'within' is the preposition, and 'an hour' is the object of the preposition, modifying the verb in the sentence.


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