Counting before numbersBefore the invention of written numbers，people used many different ways to count things.
    （A）__________ first，people used their fingers，and even their toes.However，they could only count small numbers in this way.
    After that，they began to make small marks on sticks and bones.This helped them count bigger numbers.They used them to count things（B）such as the days of the month，the amount of food and the number of animals they had.
    Then （C）人們開始使用由粘土或小石頭制成的代幣.This helped them count even bigger numbers. （D）They often put the tokens on pieces of string so that they could carry them around easily. This developed into tools like the abacus.
    （E）At last，people began to develop systems of written marks to show different numbers，and this led （F）________ the Hindu-Arabic system（0-9）.We are still using this system today.
（1）在文中畫線部分（A）和（F）處填入適當(dāng)?shù)膯卧~：

At；to

At；to

（2）寫出文中畫線部分（B）和（E）處近義詞或同義詞：

like；Finally

like；Finally

（3）將文中畫線部分（C）譯成英語：

People began to use tokens made from clay or small stones.

People began to use tokens made from clay or small stones.

（4）將文中畫線部分（D）改寫為：They often put the tokens on pieces of string

in order

in order

that they could carry them around easily.
（5）從文中找出能說明本文主旨大意的句子：

Before the invention of written numbers，people used many different ways to count things.

Before the invention of written numbers，people used many different ways to count things.