Give the correct form of the verbs in brackets :
21. The police didn’t permit ( camp ) in this wood for security reasons .
22. We don’t allow people ( smoke ) in the lecture room.
23. The teacher advised ( review) the grammatical structures carefully .
24. He’ s used to ( go ) on foot to work .
25. We get used to ( work ) on Sundays .
26. She is looking forward to ( see ) her friends .
27. Sometimes students avoid ( look ) at the teacher if they don’t want (answer ) a question.
28. You should try ( wear ) any shirts you want to buy.
29. The teacher recommends us ( prepare) the lessons well before ( come ) to class.
30. There are people can’t help ( laugh )when they see someone ( slip ) on a banana skin
31. He went to bed without ( lock ) the doors .
32. They don’t have enough patience ( wait ) for him .
33. Gravity makes water ( run ) downhill .
34. This man let me ( use ) his phone yesterday.
35. Are we allowed ( go ) out with Tom ?
36. The teller was made ( raise ) his hands .
37. Mary was advised ( stay ) out of the crowd .
38. She prefers ( eat ) to ( prepare ) meals .
39. When the rainy season comes , you need ( repair ) the roof of the house .
40. The flowers need ( water ) but you needn’t ( water ) them now.
21. The police didn’t permit ( camp )camping in this wood for security reasons .
22. We don’t allow people ( smoke )to smoke in the lecture room.
23. The teacher advised ( review)reviewing the grammatical structures carefully .
24. He’ s used to ( go )going on foot to work .
25. We get used to ( work ) working on Sundays .
26. She is looking forward to ( see ) seeing her friends .
27. Sometimes students avoid ( look )looking at the teacher if they don’t want (answer )to answer a question.
28. You should try ( wear )wearing any shirts you want to buy.
29. The teacher recommends us ( prepare)to prepare the lessons well before ( come )coming to class.
30. There are people can’t help ( laugh )laughing when they see someone ( slip )slip on a banana skin
31. He went to bed without ( lock )locking the doors .
32. They don’t have enough patience ( wait )to wait for him .
33. Gravity makes water ( run ) run downhill .
34. This man let me ( use ) use his phone yesterday.
35. Are we allowed ( go ) to go out with Tom ?
36. The teller was made ( raise )to raise his hands .
37. Mary was advised ( stay )staying out of the crowd .
38. She prefers ( eat )eating to ( prepare ) preparing meals .
39. When the rainy season comes , you need ( repair )to repair the roof of the house .
40. The flowers need ( water )watering but you needn’t ( water ) water them now.
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