Here are the correct forms of the verbs to fill in the blanks:

17. Tom just couldn't resist **doing** that.
18. I can recall **seeing** those pictures.
19. I don't remember **buying** this.
20. I plan **to wait** until Tom gets here.
21. Mary is trying to persuade Tom **to go** to Boston with her.
22. I will try **not to interrupt** you while you are studying.
23. I suggested **going** for a walk.
24. I want **to sell** it.
25. How much time did you spend **doing** research before you started writing?
26. I don't want to risk **missing** the last train of the day.
27. Tom never lets his children **watch** TV after 10:00 p.m.
28. I don't like people who always insist on **talking** about politics.
29. She threatened **to call** the police.
30. I want to try **eating** tofu sometime.