Iran, North Korea, Syria and ... commas. While Mike Pompeo is focused on a number of key geopolitical concerns, an email obtained by CNN suggests that the secretary of state also appears to have had ...
Use a comma to separate two independent clauses when they are joined by one of seven coordinating conjunctions (for, and, nor, but, or, yet, so). We were out of ice cream, so I went to the store. (c) ...