4. Hey, you! The one in the red R.O.O.L. shirt! Do you understand? Let’s move on.
5. Once he realized his mistake , Mark was able to correct his answer. After the basketball game , we will attend the school dance. In 1492 , Christopher Columbus sails to the New World. Think about everything that has been taught about grammar. What do you notice about the words in the sentence? What do you notice about the placement of commas? Does anything look familiar? ANYTHING?
6.
7. James Wilson works as a chemical engineer, and his mother works as a pharmacist. two independent clauses joined by a conjunction! Do you get it?
![Types of Comma Usage ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)