阅读理解，判断正（T）误（F）
People use money to buy food,books,bicycles and hundreds of other things they need.When they work,they usually get paid in money.
Most of the money used today is made of metal(金属) or paper.But in ancient(古代的) time,people often used all kinds of things as money.One of the first kinds of money was shells(贝壳).
In China,cloth and knives were used as money.Elephant tusks(象牙)，monkey tails and salt were used in some parts of Africa.Rice was also a kind of money used by the ancient people in some islands.Cows and other animals were used as money,too.
The first copper coins(铜币) were made in China.They were round and had a square(方形)hole in the center.Different countries had used different metal for their money.Later some countries began to make coins of gold and silver.But gold and silver were heavy to carry when people need a lot of coins to buy something expensive.The Chinese were the first to use paper money.The first paper money looked more like a note from one paper to another than the paper money used today.
People used all kinds of things as money in ancient times.
African people used copper coin as money in the old days.
People gave up gold and silver coins because they were easy to slip off.
The Indians were the first to use paper money.
The passage is mainly about the history of money.