Which word in the sentence is a predicate nominative? Melbourne was the first city in the Southern hemisphere to host the Olympics. a. first b. Olympics c. hemisphere d. city

D. City A predicate nominative completes a linking verb and renames the subject. So it would be 'city', since city is renaming 'Melbourne'.

the answer is d. city because  The subject is "Melbourne," and the word in the predicate that renames it is "city."