Most pupils can make clear statements about what they have experienced and imagined .The purpose of punctuation is to help the reader understand the writer 's meaning . Variations in punctuation may result in differences in meaning , lack of meaning , or different emphasis . Most punctuation marks are written substitutes for intonation--visual symbols that have developed as substitutes . Some punctuation marks , such as those found in the business letter , are dictated by custom . Students need to know the basic function of punctuation...











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