A 根据句意和汉语提示写出单词，完成句子，每空一词。

61. Many countries speak    __    （高度地）of China's high-speed railway technologies.

62. You cannot _______________(想象) how much difficulty I had communicating with him.

63. We are looking forward to using free Wi-Fi           in the near future. (到处)

64. Edison is one of the greatest     ______   (发明家) in the world.

65. As students, we shouldn’t do anything ____ ______ (反对) the laws or rules.

B 根据句意用所给单词的适当形式填空，每空一词。

66.I’m afraid I can’t finish the work today, I need some ________(many) hours.

67. People who are in their ________ (thirty) care more about their career than their own life.

68. Don't look at me like that! I'm just telling you the        (true).

69. It is not polite to ask a stranger questions about his        (person) life.

70. If you have any trouble          (use) the website, just click on this icon for help.