Fill in the blank with a suitable word to complete the passage.

Chọn từ thích hợp để hoàn thành đoạn văn sau

China is the most populous country of the world. Its (1)_______ is approximately 1.3 billion people, which is almost 22% of the (2) ______ population. The population density is high in the southeast: 43 percent of the land contains most of its population. A quarter of the population (3) _______ China is in the middle and lower parts of the Yangtze River, and the population density (4)______ 663 people per square kilometer. Shanghai is China's largest city, (5) ______ population density reaches 2,118 people per square kilometer.

China's population growth rate has (6) __________ in the past years, although its population is still increasing. In the 1970s, the government started to implement birth (7) _______ programs to the people: late marriage, late childbearing, a one-child family, and a four-year period between two (8) ________ in the countryside where each couple may have more than one child, According to the report of Major Figures of Population of China, the annual growth rate of China's population (9) _____ from 25.83% (in 1070) down to 11.21% (in 1994) and to 8.77% (in 1999) in the past 20 years. This should be (10) ______ a great success.