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

Exercise 39

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 bored employees managed to stay awake during the CEO's speech.__________________