How does Johnson's use of rhetorical devices contribute to the
purpose of the speech?

Johnson's goals were to explain, publicize, promote, and defend ... dential press conferences do not use the viewpoint of rhetorical criticism, so models for ... press relations further contribute bases for analysis. Newspaper ... communication, and speech criticism were refined to devise a means for qualitative ...

sing because that is what they are doing in the sentence

explanation:

the simple predicate is the main verb in the predicate that tells what the subject does. example: my father fixed the dryer. read each sentence. draw a line under the complete predicate.

the speaker versus the boy.