Question

select all of the proper nouns.
mr. finley says that newberg high school is the best school in the whole state.

Explanation:

Proper nouns are specific names of people, places, organizations, etc. "Mr. Finley" is a specific person's name, and "Newberg High School" is a specific school's name. So these are the proper nouns.

Answer:

Mr. Finley, Newberg High School