Which one of the following sentences contains a predicate adjective?

AThe air feels damp.
BAncient stones are found nearby.
CThis time I will not fail.
DSeveral students failed the test.

Verified Answer :

AThe air feels damp. This sentence contains a predicate adjective.

Predicate adjectives modifies the subject in the sentence. It follows a linking verb. 

The subject in the sentence is AIR; the linking verb is feels, and the predicate adjective is DAMP.