Final answer:
The simple predicate in the sentence is 'was'.
Explanation:
Was is the simple predicate in the sentence. In the sentence, 'George Washington was one of the greatest generals in American history,' the verb 'was' is the simple predicate that shows the action or state of being of the subject, George Washington.
Learn more about identifying the simple predicate in a sentence here:
https://brainly.com/question/44368939
