The population of the U.K. is more than （）million.

The highest mountain in Britain is（）

Britain is basically an exporter of（）

The full title of the U.K. is the United Kingdom of （）and （）

（）is composed of six Irish counties that elected to remain in the union with Great Britain.

Detroit is famous for the production of （）

Natural gas was discovered in Britain in the（）

The most important river is the River of （）

In Wales many people speak（）

River （）flows through Glasgow.