用方框中所给单词的适当形式填空，使短文正确，通顺。（每词限用一次）
| large population five live other find short crowed and become |
The population in China
China has the____ population in the world, and about one ____ of the people in the world live in China. Because of the large____ , there is less____ space for each family. And it's difficult for lots of people____ jobs. The large population also causes many____ difficulties for the whole nation .For example, we're ____ of energy and water. Most cities are ____ than before, ____ the traffic is much heavier .The large population____ a serious problem.
