Final answer:
A prepositional phrase is a group of words that begins with a preposition and ends with a noun or pronoun. The sentence that uses two prepositional phrases is: 'The helicopter landed among the cars in the parking lot.'
Step-by-step explanation:
A prepositional phrase is a group of words that begins with a preposition and ends with a noun or pronoun. The sentence that uses two prepositional phrases is: The helicopter landed among the cars in the parking lot. Here, 'among the cars' and 'in the parking lot' are both prepositional phrases.
Learn more about Parts of Speech