题目内容：

When we think of money, we think of coins and paper bills. That is what money is today. But in the past people used many things in place of money. Some countries used cows. Other countries used salt, tobacco, tea or stones. Today there are stills some places in the world that do not use paper money. One place is the island of Yap in the Pacific Ocean.

On the island of Yap, people use the heavist money in the world —Yap stones. These are round, white stones with a hole in the middle. The Yap stones do not originate from the island. The Yap men have to go to the islands four hundred miles away to fetch them. Big stones can be twelve feet high — as big as two tall men. Small stones are as big as a dinner plate.

Rich people do not carry the Yap stones. Servants follow the rich. Each servant carries a stone on a pole over his shoulder. Today the people on the island use paper money for everyday shopping. But for other things they still prefer Yap stones.

根据短文内容，选择正确答案。

1. On the island of Yap, people use ____ as money.

A. stones     B. cows     C. dinner plates      D. salt

2. What does the word “originate” mean?

A. Grow.     B. Come.    C. Develop       D. Begin

3.Now paper money is used _____ on the island of Yap.

A.only by rich people   

B. in place of Yap stones  

C. for shopping of everyting 

D. for everyday shopping

4.The passage is mainly about _______.

A. money used around the world   B. the history of Yap Island

C. money used on Yap Island      D. different kinds of money

5. Which of the following is TRUE？

A. The Yap stones originate from the island of Yap.

B. The Yap stones are all twelve feet high.

C. The Yap stones have a hole in the middle.

D. People on Yap Island use small stones as dinner plates.