It means when one person writes something that means something else or uses words that convey the meaning that is the opposite. Hope this Helps!!!!
A prefix meaning<span> “with,” “together,” “in association,” and (with intensive force) “completely,” occurring in loanwords from Latin ( commit): used in the formation of compound words before b, p, m: combine; compare; commingle. Expand. Also, co-, </span>col<span>-, </span>con<span>-, cor-.</span>
Tone is the author's attitude toward the speech. Since we know that Dr. King was the author and presenter of the speech, this was one of inspiration, seriousness, hope, and encouraging. This is not to be confused with mood. Mood is your feelings from the text. So, while the tone may be one of hope, to say it was 'hopeful' would be a mood (if that is indeed what you are feeling when hearing it.)
A. The commas are needed between their names as they are separating different clauses. <span />