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67. Their bodies have been found in a warehouse with a shotgun猎枪lying nearby, and detectives are trying to piece ( )the puzzle of how they died.

66. It is odd that people consider Peter to be a very easy-going and open-minded person because he is ( )essence a very shy and conservative person.

65. It was quite beyond our expectations that the Spanish football team's initially slow strategy of attack sprang ( ) life in the second half of the game.

64. To a large extent, computers have already ( )most aspects of our lives, from transportation and telecommunications to entertainment.

63. Don't be too( )! If the manager of the car dealership intended to give you the job, he would have called you by now.

62. With Spring Festival drawing nearer, people are glowing with happiness, and are full of hope; this excitement is ( )before New Year's Eve.

61.The disaster is already set to be the world's worst for ground casualties ( ) by a crashing aircraft.

60.Child mortality死亡率decreased due to improvements in medical care and greater attention to problems related to proper( ).

59. From a practical ( ), how can you reduce production costs and at the same time minimize the risks involved?

58.There are ( )changes inenvironmental conditions from freezing cold to extremely hot,and from dry to very humid潮湿的?