Помогите пожалуйста выполнить задания к тексту "What is international trade?"

When Honduras exports bananas to Switzerland, they can use the money they earn to import Swiss Chocolate-or to pay for Kuwaiti oil or a vacation in Hawaii. The basic idea of international trade and investment is simple: each country produces goods or services that can be either consumed at home or exported to other countries.
The main difference between domestic trade and international trade is the use of foreign currencies to pay for the goods and services crossing international borders. Although global trade is often added up in U.S. dollars, the trading itself involves various currencies. Japanese videocassette recorder is paid for in German marks in Berlin, and German cars are paid for in U.S. dollars in Boston. Indian tea, Brazilian coffee, and American firms are sold around the world in currencies as diverse as Turkish liras and Mexican pesos.
Whenever a country imports or exports goods and services, there is a resulting flow of funds: money Returns to the exporting nation, and money flows out of the importing nation. Trade and investment is a two – way street, and with a minimum of trade barriers, international trade and investment usually makes everyone better off.
In a interlinked global economy, consumers are given the opportunity to buy the best products at the best prices. By opening up markets, a government allows its citizens to produce and export those things they are best at and to import the rest, choosing from whatever the world has to offer. Some trade barriers will always exist as long as any two countries have different sets of laws.

2. Ответить письменно на следующие вопросы:
1. What is the basic idea of international trade?
2. What is the main difference between domestic and international trade?
3. What does government allow its citizen?

3. Найти в тексте производные от следующих слов.
to invest
to export
to trade
nation
to open

5. Выписать из текста и определить функцию причастия настоящего, прошедшего времени, герундия.

6. Вместо пропусков вставить один из предлогов : at, with, for, in.
1. Videocassette recorder is paid for … German.
2. The using of foreign currency to pay ...the goods is the main difference between domestic trade and international usually.
3. Investment usually makes everyone better off with a minimum … trade barriers.

7. Выписать из текста предложения с модальными глаголами или их эквивалентами.
8. Выписать из текста 3 прилагательных и образовать степени сравнения.

9. Задать как можно больше вопросов к следующему предложению:
In a interlinked global economy, consumers are given the opportunity to buy the best products at the best prices.

10. Перефразировать предложения, употребив пассивный залог, где это возможно:
1. Honduras exports bananas to Switzerland.
2. Money flows out of the importing nation.
3. Government allows its citizens to produce and export goods or services.