Parentheses and brackets (specifically, square brackets) normally come in pairs, as do other types of brackets and braces. Their main job is to set things off from their surroundings.
To find out more—and to test your knowledge of these pairs of related marks—take the quiz.
Note: Style guides sometimes disagree. Except for a few details that can be verified in standard dictionaries and encyclopedias and other readily available sources, the answers in this quiz rely on the information in the 17th edition of CMOS.
Chicago Style Workout 66: Parentheses (and Brackets)
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