66. Fashion designers are rarely concerned with vital things like warmth, comfort and ________ .
　　A) stability B) capability
　　C) durability D) availability
67. Back in the days when people traveled by horse and carriage, Karl Benz ___ the
world with his extraordinary three-wheeled motor vehicle.
　　A) inhibited B) extinguished
　　C) quenched D) stunned
68. If we continue to ignore the issue of global warming, We will almost certainly suffer the
_________ effects of climatic changes worldwide.
　　A) dubious B) drastic
C) trivial D) toxic
69. According to the theory of evolution, all living species are the modified ___ of earlier
species.
　　A) descendants B) dependants
　　C) defendants D) developments
70. The panda is an endangered species, which means that it is very likely to become ___
without adequate protection.
　　A) intact B) insane
　　C) extinct D) exempt