Present Simple: все оставляешь так, как есть.
Past simple:
6. played a lot of computer games
7. ate lots of ice cream
8. spent a week in New York
9. climbed a mountain
10. sunbathed on beach every day
11. went fishing
Future Simple: просто ко всем глаголам добавляешь «will» (например will surf, will sleep, will drive и тд)
Present Continuous:
23. is/are roasting some marshmallows
24. is/are buying some souvenirs
25. is/are taking a lot of selfies
26. is/are riding a roller coaster
27. is/are staying in a 5-star hotel
28. is/are swimming in the sea