Uzupełnij luki 1–6, przekształcając wyrazy podane w nawiasach, tak aby otrzymać logiczny, spójny i poprawny gramatycznie tekst. Wymagana jest pełna poprawność ortograficzna wpisywanych wyrazów.
Some 1 (RESEARCH) think the word 'salary' comes from the fact that Roman soldiers received salt as payment for their work. However, carrying bags of salt was very 2 (PRACTICE), and keeping them dry was difficult too. 3 (FORTUNATE), the invention of coins and notes ended this problem. The Lydians were the first people in the western world to use money. According to the famous Greek 4 (HISTORY) Herodotus, the Lydians invented coins and the idea of shopping. They used a substance called electrum to make their coins. Electrum was a 5 (MIX) of gold and silver. The coins had the date and a lion's head on them and the Lydians made the first ones over 2,600 years ago. Today, there are a few Lydian coins in existence, but they are hard to find. 6 (NEED) to say, their value is a lot higher than it was 2,600 years ago. You will have to pay about 7,500 euros if you want to buy one now!
2. impractical
3. Fortunately
4. historian
5. mixture
6. Needless