Question

select the linking verb and the predicate noun or predicate adjective. in 1985, at the age of seventeen, boris becker became the youngest winner of the mens wimbledon singles tennis tournament.

Explanation:

A linking verb connects the subject to a word that renames or describes it. "Became" is the linking verb here as it links "Boris Becker" to what he became. "The youngest winner" is a predicate noun (noun phrase) that renames the subject.

Answer:

Linking verb: became
Predicate noun: the youngest winner of the men's Wimbledon singles tennis tournament