Question

Identify the preprositional phrase in the following sentence: A girl in my classroom threw a paper airplane.

A girl
In my classeoom
Threw a paper airplane
a paper airplane

Answer 1

The answer is "in my classroom." 

you can tell because it starts with the preposition word "in"

Answer 2

Answer:

The answer is: in my classroom.

Explanation:

A prepositional phrase is the part of the sentence that consists of a preposition and its object. Prepositional phrases can modify the verb or the noun. In the case of the sentence a girl in my classroom threw a paper airplane, the preposition in and the object my classroom, modify the noun, (a girl), therefore it is a prepositional phrase, and because it modifies the noun it is also called adjectival phrase.