Explanation: The tone of a text or sentence is the author's or speaker's attitude towards the audience, the subject or even the characters of the text. There are many different kinds of tones, like: positive, negative, objective, sad, angry, etc. In the given sentence, the word that most clearly creates an inappropriate tone for a class presentation, is the corresponding to option B: Joke, because it isn't a word that should be used in an academic environment.
<span>C. Wearing dark glasses, he had trouble seeing in the smoky room is the correct answer because it is the only sentence with both correct grammar as well as logical sense</span>
1) D This is because we are waiting to see what will happen now that they will no longer stay silent and be oppressed. 2) B Because the thermometer changed much in society. Hope this helps!
