2012年12月大学英语六级语法专项练习(10)

56. Since they betrayed us, they have no hope of convincing ________ their sincerity.
A) with        B) for        C) in        D) of（B）
57. They assured us that ________ was waiting for they were there to share it.转自:考试网 - [telnote.cn]
A) what        B) whatever        C) it        D) whoever（B）
58. ________ exposure to dirty air can cause people suffer from some diseases.
A) Raised        B) Prolonged        C) Expanded        D) Enlarged（C）
59. ________ about one of the most rapidly changing countries in a ceaselessly changing world is not all easy.
A) Being informed        B) To be informing
C) Have in formed        D) Informed（B）
60. Though you stay in the sea for weeks, you will not ________ contact with the outside world.
A) lose        B) fall        C) miss        D) fail（D）
答案：56. B 57. B 58. C 59. B 60. D