Plz revise the short paragraph its urgent?

Question

Many people thought China was a developing country that they were in need of help because China suffered greatly from massive earthquakes in Sichuan and the threat of the terrorism before hosting the 2008 Olympic. However, Beijing, the host city of the 2008 Olympic, shows to the world how well they tide over difficult situations and harmonize the world within one as the Beijing Olympic slogan, “One World One Dream.” In fact, the Beijing Olympic is one of the successful Olympics in the history because it has made startling progress economically, in the quality of people’s lives and [list something(one other thing that they change a lot)]

Answer 1

Many people thought China was a developing country until China suffered greatly from massive earthquakes in Sichuan; as well as a threat of terrorism before hosting the 2008 Olympics. However, Beijing, the host city of the 2008 Olympic, exhibited to the world how capable they were of overcoming straneous obsticals and attempting to bring harmony to the world, “One World One Dream", one of Beijings' Olympic slogans. In fact, the Beijing Olympics is one of the most successful Olympics in the history, because it has made startling progress economically in Beijing. In the quality of people’s lives and the environment.

Answer 2

Many people thought that China was a developing country and that they were in need of help. This was because it suffered greatly from massive earthquakes in Sichuan and had to cope with the possibility of terrorist activity before hosting the 2008 Olympic Games. However, Beijing, the host city of the 2008 Olympics, has shown to the world how well it handles difficult situations and attempts to bring harmony to the world by use of the Beijing Olympic slogan, “One World One Dream.” In fact, the Beijing Olympics is one of the successful in history because it has made startling progress economically, in the quality of people’s lives and it's show of hospitality to foreign visitors.

Answer 3

Many people thought China was a developing country in need of help after the massive earthquakes in Sichuan and the terrorist threats prior to the 2008 Olympics. However, Beijing, the host of the 2008 Olympics, showed the world how they endured many difficult situations and still brought the world together with the Olympic Slogan "One World One Dream." In fact, the 2008 Summer Olympics has become one of the most successful events in history with a large growth economically, socially and atheltically.

This sounds better :)

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