请用英语举例。谢谢了！Since 1949 great changes have taken place in our motherland.

for example, the living condition has improved a lot in the country side ,people can eat meat every day.

In 1978,China carried out the policy of reform and opening-up.
In 1997, the return of Hong Kong to China was a significant milestone.
In 2008, Wenchuan earthquake caused over 69,000 people to death.

I have lived in Shanghai since I came to china.