which sentence includes a prepositional phrase?

a. she attempted to study the Spanish vocabulary words.

b. my doctors appointment was postponed until next month.

c. Friday is the last day to enroll.

d. my dog is chasing the neighbor's cat.

b. my doctors appointment was postponed until next month.

The sentence that includes a prepositional phrase is:

d. my dog is chasing the neighbor's cat.

The sentence that includes a prepositional phrase is:

b. my doctor's appointment was postponed until next month.

To identify a prepositional phrase in a sentence, you should look for a preposition followed by a noun or pronoun called the object of the preposition. In this case, the prepositional phrase is "until next month," where "until" is the preposition and "next month" is the object of the preposition.