35. (A)Follow policemen’s directions. 　　(B)Keep an eye weather. 　　(C)Avoid snow-covered roads. 　　(D)Drive with special care.

53. What does the author mean by “Nature is indifferent to human notions of fairness” (Line 1, Para. 2)? 　　(A)Nature is quite fair regarding the survival of turtles. 　　(B)Turtles are by nature indifferent to human activities. 　　(C)The course of nature will not be changed by human interference. 　　(D)The turtle population has decreased in spite of human protection.