阅读下面短文，根据以下提示：1）汉语提示; 2)首字母提示；3）语境提示，在每个空格内填入一个适当的英语单词，并将该词完整地写在右边相对应的横线上。所填单词要求意义准确、拼写正确。
At the present time, the Internet is very popular all over the world,
e       in some big cities. But do you know the history of the
Internet?   ______（建造）in 1960s, the Internet was only a network
of computers which shared simple _______（信息）. If one of the
computers ______ down, the whole network would be unable to work,
_______（导致）continual problems. At first, just the government had
a_______ to the Internet, using it for communications among different
branches. ______ 1970s it had been used in universities, banks and hospitals.
At the beginning of 1990s computers became c      for common people,
_______ increased the use of the Internet. Now tens of millions of people
log on every day, making _______ the most important part of people's life.