C. underline the correct item. 16. he avoids to travel/travelling by plane because of his phobia. 17. helen will never forget dancing/to dance with tom hanks at the party. 18. let’s spend our weekend to shop/shopping downtown. 19. mark has decided to become/becoming a lawyer as his father. 20. if you want to be successful you should use/to use your imagination. 21. julia is looking forward to getting/to get a mail from her boyfriend. 22. looking at tom’s funny face i couldn’t help laughing/to laugh. 23. dad, really i promise to look/looking after my younger sister. 24. what you can do/to do is just not to mind your business. 25. don’t let him to eat/eat ice cream or he will get a sore throat.