Помогите выполнить задания по английскому!!!

I. 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.
II. The main difference between domestic trade and interna-tional 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 films are sold around the world in currencies as diverse as Turkish lira and Mexican pesos.
III. 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.
IV. In an 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.
V. Some trade barriers will always exist as long as any two countries have different sets of laws. However, when a country decides to protect its economy by erecting artificial trade barriers, the result is often damaging to everyone, including those people whose barriers were meant to protect.
VI. The Great Depression of the 1930s, for example, spread around the world when the United States decided to erect trade bar-riers to protect local producers. As other countries retaliated, trade plumpered, jobs were lost, and the world entered into a long period of economic decline.
ЗАДАНИЕ:
1) Найдите в тексте и выпишите глаголы в пассивном залоге и определите их видо-временную форму.
Например: is paid – Present Indefinite Passive Voice
2)Выпишите из текста все Participle I, II, определите их функцию и переведите на русский язык.
3)Выпишите из текста все предложения с инфинитивами, определите их функцию в предложении и переведите эти предложения на русский язык.
4)Продолжите данные утверждения в соответствии с содер-жанием текста, выбрав один из предложенных вариантов ответа:
1. The main difference between domestic and international trade is…a) the investment, b) the prices for goods and services, c) the use of foreign currencies to pay for the goods and services crossing international borders.
2. …, 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.
a) By closing markets, b) by opening supermarkets, c) by opening up markets.
3. Some trade barriers will always exist as long as any two countries have different…
a) sets of laws, b) government, c) currencies.
4. The basic idea of international trade and investment is simple: a) each country produces goods or services that can be either consumed at home or exported to other countries.
b) to produce more goods and services that can be exported to other countries.
5. A country protects its economy by …
a) making laws, b) erecting artificial trade barriers.