22. C。据上文“Mad cow drives us mad”可知人们对政府从美国进口牛肉表示抗议
21. B。据语境及下文“1000,000 people filled the streets”可知人们上节游行
30. A. persuasive B. controversial C. ashamed D. impressive
答案:
29. A. destroy B. rebuild C. break D. value
28. A. steady B. proper C. healthy D. low
27. A. wise B. violent C. cruel D. aggressive
26. A. laws B. customs C. trade D. education
25. A. fiercer B. broader C. narrower D. stronger
24. A. exportation B. production C. importation D. sale
23. A. stopped B. continued C. restricted D. controlled