You must never mark an answer without reading all the choices. Pay attention to the question word's part of speech. Words on one side of the colon will all be the same part of speech. On the other side of the colon, they will all be the same. Across the colon, they may be different, however.
Easy antonyms have easy answers.
Don t fret over difficult choices on the questions you know are easy questions. You may have to work backward, turning the answers into their opposites to see if they might be synonyms of the question word. Eliminate words that have no clear opposite. On questions you know are hard, if three or more choices have the same ending as the word in capital letters, you should select your answer from among those choices. Don t spin your wheels on the hard antonyms.