Passage One

56. B) They are used by big businesses to monopolize agriculture.
57. D) More scientific research on GM crops.
58. A) Feeding the growing population makes it imperative to develop GM crops.
59. D) Whatever is useful to boost farming efficiency should be encouraged.
60. C) Efforts spent on it should be turned to more urgent issues of agriculture.

Passage Two

61. C) Unemployment.
62. D) Pour money into the market through asset buying.
63. B) Deflation.
64. C) Tighten financial regulation.
65. A) She possesses strong persuasive power.