PHÁT M ed
Nhóm 1 /t/: p,k,f,s,ch: (knocked, laughed)
Nhóm 2 /id/: t,d (wanted, needed)
Nhóm 3 /d/: còn lại (opened)

EXERCISE 1: Choose the word whose underlined part is pronounced differently from the others
11. A. walked B. ended C. started D. wanted
12. A. killed B. hurried C. regretted D. planned
13. A. visited B. showed C. wondered D. studied
14. A. sacrificed B. finished C. fixed D. seized
15. A. needed B. booked C. stopped D. washed
16. A. packed B. punched C. played D. pushed
17. A. washed B. parted C. passed D. barked
18. A. killed B. cured C. crashed D. waived
19. A. imagined B. released C. rained D. followed
20. A. called B. passed C. talked D. washed
21. A. landed B. needed C. opened D. wanted
22. A. cleaned B. attended C. visited D. started
23. A. talked B. fished C. arrived D. stepped
24. A. wished B. wrapped C. laughed D. turned
25. A. considered B. rescued C. pulled D. roughed
26. A. produced B. arranged C. checked D. fixed
27. A. planned B. examined C. operated D. enjoyed
28. A. discovered B. destroyed C. developed D. opened
29. A. repaired B. invented C. wounded D. succeeded
30. A. improved B. parked C. broadened D. encouraged
31. A. delivered B. organized C. replaced D. obeyed
32. A. painted B. provided C. protected D. equipped
33. A. tested B. marked C. presented D. founded
34. A. used B. finished C. married D. rained
35. A. allowed B. dressed C. flashed D. mixed
36. A. switched B. stayed C. believed D. cleared
37. A. recommended B. waited C. handed D. designed
38. A. annoyed B. phoned C. watched D. remembered
39. A. hurried B. decided C. planned D. wondered
40. A. posted B. added C. managed D. arrested
41. A. dreamed B. neglected C. denied D. admired
42. A. admitted B. advanced C. appointed D. competed
43. A. announced B. apologized C. answered D. argued
44. A. complained B. applied C. compared D. polished
45. A. declared B. exchanged C. excused D. joined
46. A. contributed B. jumped C. introduced D. vanished
47. A. whispered B. wandered C. sympathized D. sentenced
48. A. worked B. stopped C. forced D. wanted
49. A. kissed B. helped C. forced D. admired
50. A. sympathized B. faced C. cried D. defined