Review Guides 21 through 26 about commas in Appendix D, Grammar and Mechanics Guide, beginning on page D-8. On a separate sheet, revise the following sentences to correct errors in comma usage. For each error that you locate, write the guide number that reflects this usage. The more you recognize the reasons, the better you will learn these punctuation guidelines. If a sentence is correct, write C. When you finish, check your answers on page Key-1. EXAMPLE: When you prepare to write any message you need to anticipate the audience's reaction. REVISION: When you prepare to write any message, you need to anticipate the audience's reaction. 1. Informal research methods include looking in the files talking with your boss and interviewing the target audience. 2. When we use company e-mail we realize that our messages are monitored. 3. By learning to distinguish between dependent and independent clauses you will be able to avoid serious sentence faults. 4. Active-voice verbs are best in most business messages but passive-voice verbs are useful when sensitivity is required. 5. We hired Gabriella Lugo who was the applicant with the best qualifications as our new social media manager. 6. Although the letter was written on April 152014 it was not delivered until June 302018. 7. The new social media business by the way is flourishing and is expected to show a profit soon. 8. After he graduates Luke plans to move to Austin and find work there. 9. Last fall our company introduced policies regulating the use of cell phones texting and e-mail on the job. 10. The problem with many company telecommunication policies is that the policies are self-policed and never enforced