During his presentation, kent said the following: "and, like, um, the vietnam war affected, you know, american society, in, ah, many ways.” how could kent have improved his presentation? by avoiding slang by avoiding filler words by speaking slower by making eye contact 

The correct answer would be by avoiding filler words :)

Explanation:

Filler words are meaningless words, sounds, or phrases people make during pauses. Some common ones are um, uh, er, ah, like, okay, right, and you know.

The answer is: By avoiding filler words

Explanation:

However, beyond just avoid filler words, a good presentation is supported by strong arguments. Then, a good idea is to research the theme and write small drafts of the content, writing them in a piece of paper. Then he can memorize and explain better. Due to the Vietnam War's impact on American society, is not hard to create a good argumentation. An awesome way to write a good statement about this war is by watching movies about it.