The political centre of the Commonwealth is（）

The most important river is the River of （）

Natural gas was discovered in Britain in the（）

The “Backbone of England” refers to the （）

The highest mountain in Britain is（）

The name United Kingdom of Great Britain and Ireland was replaced by the present name after the 26 counties of Ireland obtained autonomy in （）

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

The capital of England and of Great Britain is（）

The largest part of U.K. is （）

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