1. ANSWER: A.
Context clues are any set of words or phrases that may hint to the meaning of a word that you don't know. They are called "context clues" since they literally give you a clue as to what the word may mean, providing you further context so you could understand the word better.
2. ANSWER: B.
As said earlier, since context clues help you understand what a certain word means, then these clues should be located before or after the unfamiliar word. Context clues are already embedded into the passage, thus you do not need a thesaurus or an explicit definition just to read one.
3. ANSWER: A.
In Microsoft PowerPoint, a new slide button is already provided for you in the Home tab. Therefore, if you want to add another slide in your existing presentation, you just simply need to click on that button.
The slide layout or layout would not add a new slide but would only offer customization options to your current slide instead.
