Решение:
- Monarchy — c) A system of government where a monarch is the head of state
- Parliament — b) The main legislative body in the UK
- Constitution — d) A document that outlines the rules and principles of government
- Federation — e) A country made up of states or regions with a central government
- Superpower — a) A large country with significant global influence
Ответ: 1-с, 2-b, 3-d, 4-e, 5-a.