C. Wales D. Irland 13. The most imp ortant river in the United Kingdom is A the Clyde river B. the Seven river C. the Thames river D. the forth river 14.Among the four administrative units the most populous and developed A. Scotland B. England C. Wales D. Northern Ireland 15. In Scotland there is the Clyde River, on which is situated a ship-building center a. Belfast B. London C. Glasgow D. Manchester 16. The Towns in Scotland are called A. countries B hireC. Wales D. Irland 13.The most important river in the United Kingdom is ____. A. the Clyde River B. the Seven River C. the Thames River D. the Forth River 14.Among the four administrative units the most populous and developed is ____. A. Scotland B. England C. Wales D. Northern Ireland 15.In Scotland there is the Clyde River, on which is situated a ship-building center ---_______. A. Belfast B. London C. Glasgow D. Manchester 16.The Towns in Scotland are called ____. A. countries B. shires