Контрольная работа по "Английскому языку"

The work which people undertake provides them with money. People buy essential commodities with money. All values in the economic system are measured in terms of money. Our goods and services are sold for money, and that money is in its turn exchanged for other goods and services. Coins are adequate for small transactions, while paper notes are used for general business. Originally, a valuable Metal (gold, silver or copper) served as a constant store of value, and even today the American dollar is technically 'backed' by, the store of gold which the US government maintains. Because gold has been universally regarded as a very valuable metal, national currencies were for many, years judged in terms of the so called "gold standard" `. Nowadays national currencies are considered to be as strong as the national economies which support them.