Active Voice:A grammatical construction where the subject performs the action. For example, "John ate an apple."
Transitive Verb: A verb that takes both a subject and one or more objects. It shows an action being done to something/someone else. For example, in "She wrote a letter," "wrote" is transitive.
Subject: The person, place, thing, or idea that performs or is responsible for an action in a sentence. For example, in "The dog barked," "dog" is the subject.