... correct order. 1. 6A 2. 18 B 3. 16 A 4. 3B 5. 1A 6. 21C 7. 1B 8. 10 C 9. 11 B 10 . 13 C 11 . 5B 12 . 2C 13 . 20B 14 . 15 C 15 . 14 B 16 . 4C Unit 9. Radio Communications 12 8 Example: Do I have to deliver ... time. 1. primitive times 2. later 3. 17 th and 18 th centuries 4. 18 20 5. 18 30 6. 19 30 7. 19 44 8. 19 46 9. 19 47 10 . 19 50 11 . 19 60 12 . 19 65 13 . now 14 . future 4.2. Fill in the blanks. 1. ... ) 10 ? TD: No, there'll be several other people with me, mainly from the Sales Department. CB: 11 … Unit 7. Computer Communications 10 3 17 . 9B 18 . 8C 19 . 22B 20. 19 C 21. 7B 22. 17 C...