Воткните в предложения слова: economy, economics, economist, economic, to economize,

Воткните в предложения слова: economy, economics, economist, economic, to economize, economical.
1. An early definition (определение) of was an inquiry (изучение) into the nature and causes of the wealth of nations.
2. The national is the system of the management and use of resources of a country.
3. You can if you compare the prices of goods before buying them.
4. J. M. Keynes was a famous
5. Inflation may cause a bad state (положение) in a country.
6. If you've got a large family, it's more to travel by car than by train.