Question

Which word in the sentence is the predicate adjective? My brother is now taller than my grandfather.

a. taller
b. than
c. brother
d. grandfather

Answer 1

Than because it describe taller.
~JZ
Hope it helps

Answer 2

Predicate adjective is the first adjective which follows a linking verb. In this case, the linking verb is 'is', and the first adjective that follows it is 'taller'. So, the correct answer is A.