Westminster, the area of central government administration is situated in the （）End.

The source of the River （）is in the Cotswolds.

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

The most important river is the River of （）

The modern （）and （）are the descendants of the Gaels of the Celtic tribes.

The earliest invasion is that by the （）-haired Mediterranean race called the Iberians.

Greater London is made up of 12 （）London boroughs and （）Outer London boroughs.

Natural gas was discovered in Britain in the（）

The U.K. consists of England, （）,（）and Northern Ireland.

Detroit is famous for the production of （）