Question

Select all words that make up the prepositional phrase in the sentence.

The unexpected ending of that movie really surprised and delighted me.

Answer 1

The prepositions are the words which show the relationship between the pronoun and the nouns. On the other hand, the prepositional phrase starts with the prepositions and end with the object of a preposition, having one or more modifiers to describe.

Therefore, the prepositional phrase in the sentence is 'of that movie'.

The above prepositional phrase acts as a modifier to the unexpected thing.

Answer 2

A prepositional phrase begins with a preposition. The only preposition in this sentence is the word of.
Having this in mind, the words that make up the prepositional phrase in this sentence is of that movie.