2012年12月大学英语六级语法专项练习(20)

　66. Vostok is close to the coldest spot in the world, where an ________ minus 128.6 F was recorded in 1983.
A) unreliable      B) extra      C) incredible      D) impossible（C）
67. It is human nature to think back to a Golden Age ________ one’s country was strong and respected.
A) when      B) provided      C) as      D) unless（A）(www．Examw。com)
68. I don’t mind a bit if you bring your friends in for a drink, but it is rather too much when sixteen people arrive ________ for dinner.
A) unusually      B) excessively      C) consequently      D) unexpectedly（D）
69. Faced with all the difficulties, the girl ________ her mother for comfort.
A) turned over      B) turned from      C) turned to      D) turned up（C）
70. David is the ________ holder of the world 5,000-meter world record, but there is no guarantee that he will win in the Olympic Games.
A) current      B) predominant      C) prevailing      D) decisive（A）