20. Do you feel like....(go) to the concert or would you like.....(stay) at home?
21. My family is considering....(take) a trip to the USA next year
22. The police didn't permit....(camp) in this wood for security reasons
23. We don't allow people....(smoke) in the lecture room
24. He's used to ....(go) on foot to work. -We get used to....(work) on Sundays
25. The teacher advised us....(review) the grammatical structures carefully
26.Sometimes student avoid...(look) at the teacher if they don't want...(answer) a question
27. You should try......(wear) any shirts you wants to buy
28. The teacher recommends us......(prepare) the lessons well before...(come) to class
29. There are people can't help...(laugh) when they see someone....(slip) on a banana skin