Which of the following sentences contains a predicate adjective?

Question

Quizplus · Accepted Answer

A predicate adjective is an adjective that follows a linking verb and helps to modify or describe the subject, which is why we can also call a predicate adjective a subject complement.
A linking verb describes the subject's state of being or condition. It is not an action verb. One way to think of a linking verb is that it is a verb you could replace with "is" and still have the sentence make sense.
Examples of linking verbs:
He is an electrician.
Dinner smells good.
She appears tired.
Not linking verbs:
He smells the salt in the ocean air.
she appeared out of nowhere.
Each answer choice includes a linking verb. However "The jacket is beautiful, you should buy it," is the only answer choice that contains a predicate adjective. This is because "beautiful" is an adjective that describes the subject and follows the linking verb "is."
In "I can′t believe the president is your cousin" the complement (cousin) following the linking verb (is) is a noun, which makes this a predicate nominative, not a predicate adjective.
In "That bald man was my teacher in high school" the complement (teacher) following the linking verb (was) is a noun, which makes this a predicate nominative, not a predicate adjective.
"My oldest son is in the military" contains a linking verb (is) but is followed by a prepositional phrase starting with the preposition in.

Which of the Following Sentences Contains a Predicate Adjective