(giúp mik với mọi người, mik cảm ơn trước ạ) 2.Read the text.Decide which answer (a, b, c, or d) best fits each blank. The Study of Coins No one really knows when money was invented. Before humans bought things with coins and paper money, most trade was done by barter, with people 1____ animals, food, and other consumer goods. Historians believe that the ancient Greeks 2____ the first coins around 650 BC. These were a mixture of silver and gold and had a picture of a lion stamped on them. Most coins are circular, but some ancient ones were rectangular. Some early coins, especially in China, had a hole through the center, so they could be tied onto a piece of string. The study and collection of coins and other forms of money is called “numismatics”. It has been a popular hobby for many centuries. One of the must-have coins for collectors, and one that always gets sky-high3____ is the “Eid Mar”silver denarius. This is a Roman coin with a portrait of Marcus Brutus on one side and a design of two daggers and a cap on the 4____ . It commemorates the assassination of Julius Caesar. This coin is not only hard to resist for the serious collector because it celebrates an important historical event, but also because it was highly 5____ at this point in Roman history to put the portrait of a living person on a coin. The fact that Julius Caesar put his own face on his coins was one of the things that led to the rebellion against him in the first place. For one of his killers to do the same seems very strange. 1 a swapping bselling c giving d changing 2 a bought b sold c produced d gave 3 a prices b fees c charges d expenses 4 a side b next c other d rest 5 a unusual b normal c seldom d done