Help me!!!!!!!!

1 Hong Kong is a special city because of its special political system: ”one country, two systems”. It is also special to tourist as it is one of few tax-free cities in the world.
(參考: http://en.wikipedia.org/wiki/Hong_kong)

2 As global warming is becoming more serious, the first thing I would do to make Hong Kong a better place to live is to improve people's knowledge of environmentalism.
(要人們了解環保)

3 The most difficult thing is the world is to accept one's failure and to challenge oneself again.

1a it has a good condition.Since h k is situated in coastal area,many foreigns trade goods to china through hk
b it is a small city but it is a world famous financial centre
2 to improve the air condition can make hk a better place to live
3 the most difficult depends on what you think