Identify the italicized word(s) in the following sentences as either a predicate nominative, P.N., or a...

Exercise 1 Identify the italicized word(s) in the following sentences as either a predicate nominative, P.N., or a predicate adjective, P.A.
1. Mr. Kravitz may become our new science teacher.
2. That object in the tree is a pineapple.
3. That train robbery remains an unsolved mystery.
4. This book on whales is a gift from my sister.
5. Jayelle and Simon are the best performers in the play.
6. These old apples smell rotten.
7. Both Tanya and Rick seemed cheerful after the exam.
8. Bika’s favorite reptiles are crocodiles, lizards, and turtles.
9. These pears don’t appear fresh.
10. The runners look weary but triumphant.
11. Isabel became chairwoman of the committee.
12. The soaked and exhausted scouts looked miserable.
13. Red, yellow, and blue are primary colors.
14. The cut flowers looked dry and lifeless.
15. My uncle has been ill.