of industry has been _______ gradual process throughout ______human existence from stone tools to modern technology.
A. / , the  B. the , a  C. A. /  D. A. a

31.   【2010浙江】 Many lifestyle patterns do such __ great harm to health that they actually speed up __weakening of the human body.
A. a; /   B. /; the   C. a; the  D. /; /

32.   【2005辽宁】This book tells ________ life story of John Smith，who left ________ school and worked for a newspaper at the age of 16.
A．the，the  B. a, the  C. the, 不填 D. a, 不填

33.   【2004北京春】On_____ news today, there were _____ reports of heavy snow in that area. 
A. the; the               B. the; 不填 
C. 不填; 不填        D. 不填; the

34.   As a consequence

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