When delivering a presentation, which method of speaking is generally the most effective and easiest?

Form two real words by combining a prefix and/or suffix with the root listed below. if you need to, use your dictionary. then illustrate that the word has the meaning of that root by using one of those words in a sentence. example: dic, dict=to say 1. addiction 2. edict the judge's edict was the final say in that matter. mit, mis=send