Learning new words 3 :)

27. A hostage was a sacrifice of kidnapping. 
Maybe: A hostage is the victim of kidnapping. 
28. Please do not hesitate if you need to discuss any urgent concerns.
29. His subjective opinion about this situation was the result of nurture.
30. The real objective of this military group of people  is to undermine a building.
31. When he returned home, he blindly tried to find a light switch blindly in the complete dark.
32. He was a similar to a blind person by when reading this book, because he cannot could not understand any words.
33. He contacts a layer lawyer to get a compensation on behalf of his company.
34. John makes an appointment with a doctor in on behalf of his friend who has a serious ailment.
35. This speaker has very clear and strong diction; hence, everybody in the room understands him easily.
36. This young boy has a great English articulation; that is rarely for his age.
37. Any protection of your own attitude of the reality will cause more the same reality against which you protect. (?)
38. His roommate was a smart, loquacious and slangy young man, so it was funny and cognitive to live together. (?)
39. Timelines for passing this the test were so stiff that he could even feel a the tension in the air by his skin.
40. A firm offers a rebate to everyone who wants to try out their new product.
41. This small boy is a freak and naughty because his parents are too busy and so they cannot find time to spend with  spare a minute  their son.
42. A The car was so deformed that it was impossible to guess it's model.
43. Psychologists think that intrinsic incentive can transform chores into a creative and inspired process.
44. This virus was so dangerous, detrimental and ubiquitous that no one could can find a save safe place.
45. Handiwork toys created by our parents still keep warm of hands that created them. (?)
46. Nowadays, medieval competitions among groups of people who are fun of medieval knights (?) take place in many cities in our country.
47. He prepared his backet bucket list in advance because was old and anticipated that his death was near.