Question

kgm

以下の写真の様な問題の解き方を教えてほしいです。
問題を貼っていますが、一問ごとの解説ではなく
全体的な分け方について教えてほしいです。
お願いします。

1. I am planning (to travel / traveling) to Europe next month.
2. She is very good at tennis, so you should avoid (to play / playing) against her.
3. We managed (to catch / catching) the last train just in time.
4. I really don't mind (to wait
waiting) for another thirty minutes.
5. He promised (to call / calling) me as soon as he arrived at the airport.
6. The company decided (to close / closing) its Tokyo office.
7. You should practice (to speak / speaking) English every day.
8. They offered (to help / helping) us clean up the kitchen.
9. I can't imagine (to live / living) without my smartphone.
10. He refused (to sign signing) the contract until he read it carefully.
11. She gave up (to look / looking) for her lost earring.
12. I expect (to finish / finishing) this project by Friday.
13. We ended up (to stay / staying) at a cheap hotel because of the storm.
14. They put off (to have / having) the meeting until next week.
15. He pretended (to know
16. The thief denied (to steal / stealing) the expensive watch.
17. I cannot afford (to buy buying) a new computer right now.
18. Have you finished (to wash / washing) the dishes yet?
19. She hesitates (to tell / telling) the truth to her parents.
knowing) everything about the issue.
20. I enjoy (to listen / listening) to podcasts while commuting.
21. My brother suggested (to go / going) to the beach this weekend.
22. We hope (to see / seeing) you again in the near future.
23. You must keep (to try / trying) until you succeed.
24. The doctor recommended (to take / taking) a few days off.
25. He failed (to pass / passing) the driving test for the third time.
26. She dislikes (to wake waking) up early on Sundays.
27. They are preparing (to move / moving) to a new apartment.
28. I miss (to hang / hanging) out with my friends from high school.
29. He demanded (to speak / speaking) to the manager immediately.
30. Please escape (to make / making) careless mistakes on the exam.