1. introduce
2. ghost
3. weekly
4. mines
5. naughty
6. ruined
7. puzzled
8. worried
9. knock
10. rush
11. polluted
12. ugly
13. deserted
14. quiet
15. stressed
21. heard
22. saw
23. gave
24. said
25. drank
26. made
27. left
28. kept
29. ate
30. went
31. found
32. spent
33. decided
34. knocked
35. said
36. met
37. heard
38. died
39. read
40. jumped
