单词拼写（每小题1分，共5分，形式错不给分）。
As everybody knows, a big e__________ happened in Yushu, China, on April,14.
This is one of the most important __________ (大事)in the history of mankind.
It was a prison from which no one can e______.
The People’s Republic of China was f____________ in 1949.
It was to realize our dream of making black and white people e______.