16. Your explanation is ________. Mark has got ________. (confuse)
17.
18. The train’s delay was ________. Bill felt ________. (frustrate)
19. Helen is ________ because she has made ________ progress in her study. (please)
20. Anne was ________ by my ________ words. (encourage)
21. Samuel felt ________ when he heard her ________ words. (upset)
22. Julia became ________ of the ________ lecture by the professor. (tire)
23. David was ________ by the ________ buildings in the old city. (fascinate)
24. Nina was ________ because there had been several ________ phone calls. (disturb)
25. Andrew felt ________ when he saw the ________ battle in the film. (terrify)
(参考答案：1. satisfied, satisfying 2. moving, moved 3. discouraged, discouraging 4. surprised, surprising 5. interesting, interested 6. bored, boring 7. frightening, frightened 8. inspiring, inspired 9. amused, amusing 10. amazing, amazed 11. disappointing, disappointed 12. astonishing, astonished 13. excited, exciting 14. annoying, annoyed 15. puzzled, puzzling 16. confusing, confused 17. embarrassed, embarrassing 18. frustrating, frustrated 19. pleased, pleasing 20. encouraged, encouraging 21. upset, upsetting 22. tired, tiring 23. fascinated, fascinating 24. disturbed, disturbing 25. terrified, terrifying)