The use of commas is essential for clarity and proper sentence structure. In the first sentence, "After dinner, we went for a walk," the comma is needed to separate the introductory phrase from the main clause, indicating a pause that helps the reader understand the sequence of events. In the second sentence, "I bought apples, oranges, and bananas," the comma is used before the conjunction "and" in a list to separate the items clearly, ensuring that each fruit is distinctly recognized. In the third sentence, "My brother, who lives in New York, is visiting us," the commas are necessary to set off the non-essential clause, providing additional information about the brother without interrupting the main flow of the sentence Simplify this

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Commas are important for clarity in writing. In the first sentence, "After dinner, we went for a walk," the comma separates the introductory phrase from the main clause, helping the reader understand the order of events. In the second sentence, "I bought apples, oranges, and bananas," the comma before "and" clearly separates the fruits in the list. In the third sentence, "My brother, who lives in New York, is visiting us," the commas set off extra information about the brother without interrupting the main message.