Business English 10th Edition by Mary Ellen Guffey,Carolyn Seefer

Exercise 101

Skill Maximizer. To make sure you have mastered the use of commas, try your skill on these challenging sentences that cover all levels. Insert needed commas and write the number that you added in the space provided. Write C if the sentence is correct. Be prepared to discuss the rule for each comma you add.
Although National Geographic prints only about 30 photographs for each article the photographer takes about 14,000 images.__________________