ANSWER KEY 6. I double subject 7. C 8. I missing verb 9. I missing subject 10. I double verb EXERCISE 2 1. C 2. I missing subject 3. C 4. C 5. I missing subject 6. C 7. I double subject 8. C 9. I missing subject 10. C EXERCISE 3 1. C 2. I missing subject 3. C 4. I missing subject 5. C 6. C 7. I missing subject 8. C 9. I missing comma 10. C EXERCISE 4 1. C 2. I double verb 3. C 4. I double verb 5. C 6. I double verb 7. C 8. C 9. I double verb 10. C EXERCISE 5 1 . I double verb 2. C 3. I double ve