51. C from which I borrowed this novel
IX
52. C - for whom
53. B - was
54. D - extinct
55. B - great
56. B - pollutants
---
30. D the reason why
IV
31. C influence
32. A contaminated
33. B live
V.
34. B stay unchanged
35. C closed down
36. D. hostile
VI.
37. A is
38. A of
39. A depends
40. B therefore
41. A interfere
VII.
42. A closely related to bears
43. D A and C
44. B lonely
45. D figures out 14 new panda reserves
46. D. They have different characteristics when being captivated
VIII
47. A at which I was looking
48. D one of which is about Uncle Ho's life
49. B whom I talked to yesterday
