uses of comma - It is used to mark a pause in  asentence to make it easier to read and understand, semicolon(;) - it is used when you link two independent clauses with no connecting words, exclamation marl (!) - use to mark to show charged emotions, question mark(?) - use to mark at the end of a question, comma - it is used after an introductory: a clause, phrase, words that come before the main clause,

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