China has changed a lot since the Tiananmen Square tragedy. Living in HK, we do get quite a lot of pressure from China with regard to our political and social matters, and everyday the objections and protests of the HK people can be seen on the local newpapers.
China's freedom has speech, sadly, hasn't changed much. The government often still tries to cover up many things that it regard as "shameful". The most evident coverup was the SARS, when they denied the seriousness of the epidemic until it was too late. Mainland media were not allowed to publicise any of the information they have, and the government made sure almost none of the news were able to leak out until the HK government demanded an explanation when the death toll from the disease was sky-high. People in China have to be careful about what they say to prevent being arrested for "treason". One of the HK newspapers, Ming Pao, eventually had to close its business, and there were very convincing rumours that it was forced to bankrupcy by the Chinese government because it was the most "exposing" papers, publishing many of the scandels that the Chinee government tried to hide. Protests are still not allowed, and the most recent protest was "allowed", in fact "encouraged" because it was a protest against the Japanese government for denying the truth of the Nanjing Massacre. Even in HK, although our freedom of speech is still almost the same as many other Western countries, often politicians have to be careful about what they say. The election of our Chief Executive is merely an "act" of pretentious democracy, because the CE is always appointed by the Chinese government in the first place even though they deny that. First it was Tung, now it's Donald Tsang. Everyone knows that other 2 candadites don't stand a chance, and the citizens are not allowed to vote. The government has not allowed to pass the bill for Public Voting of the CE many times because the Chinese governments knows that their "ideal" candadite would not win the election if we can vote, and to maintain / increase their control over HK's politics and social matters, they must have a CE who would listen to them and help them.
Year after year, HK citizens mourn the dead of the Tiananmen Square. This event is still allowed because the Chinese govt. knows banning it would cause a huge rebellion and international criticisms, even though it is a pain in the eye for China. The number of mainland people allowed to migrate in HK is at a ridiculously high level, esp. the majority of them have no professional skills and they don't even bother finding their own jobs, but only feed off our tax money.
And the education system is getting into a greater and greater mess. First, they tried to enforce the "mother tongue" system, forcing some schools to teach in Chinese instead of the preferred English in the old system when HK was still a British colony. That didn't work well, and they tried to enforce the "Trilingual System", including Mandarin in the scheme of things. Then now they're allowing certain schools to go back to the English-teaching system, creating a huge academic gap between the Band 1 (good) and Band 3 (worst). Everyone knows its a desperate attempt to lower the standards in HK so the education in China can catch up / overtake HK, and to make it easier for the mainland immigrants to adapt because of their poor English, which now often force a Primary 6 student in China to attend Primary 3 in HK.
China has developed a lot financially, yet their social and political aspects are still rather conservative and behind compared to other countries, and their influence on the HK goverment is often resented by most of the HK citizens.