нужно.
Task 2.Make up sentences using new words and transport .
For example : Susan like travelling to China by plane. She went sightseeing and climbed the mountain .​

1. Mixed economy is an economic system in which some industries (are owned) by the state and others (are owned) by private persons and firms.
2. When supply is increased, a larger amount (is offered) at a given price.
3. The supply of agricultural products cannot be (increased) within a very short period of time.
4. The aim of the Organization of Petroleum (Exporting) Countries (OPEC) (founded) in 1961 is to maintain a standard price for oil and, if necessary, to limit output. In 1973 the OPEC suddenly (began) to use its influence (raising) the world price of oil so that by the end of 1974 the price (had risen) three times in most (importing) countries. It (has increased) many times since then.
5. Marginal revenue is the additional revenue (earned) by a producer from selling one more unit of his product.
6. Money supply is the total amount of money (held) by all persons and organizations in a country at a particular time.
7. The revenue (obtained) from selling output depends on the demand.
8. Landless farmers, that is, farmers (owning) no land, have to cultivate land (owned) by others.
9. Economists use the word «capital» for goods not entirely (used) up in the production process, during a particular period. Electricity is not «capital» as it (is used) entirely in the production process.
10. With less risk of a fall of price between the time decisions (are made) and commodities (are sold), producers will use additional inputs.
11. Supply (depends) on output prices and input prices. An increase in the price of an input (results) in a reduced use of that input. A reduction in the price of an output (has) the same effect as an increase in the price of input, that is, a reduced use of input. The input use (won't change), provided output and input prices (rise) or (fall) by an equal percentage. Thus, the effect on output of a decrease in product prices (can be neutralized) by an equal percentage decrease in input prices. Sometimes the prices of inputs and outputs (change) together. For example, a fall of livestock product prices (reduces) the demand for feed grains. This (leads) to a fall in the price of feeds, that is, the price of inputs.

1.  "You're just in time for tea," said Fanny's uncle as she entered _ the room. Her aunt was just then pouring _ the tea; she took a clean cup and saucer from the cupboard and poured some tea into the cup for Fanny. 2. "What's the good of calling a doctor if you refuse to take the medicine he gives you", said Ann to her friend. 3. The secretary took a clean sheet of paper from a drawer of the table and began writing a letter. 4. She took her hands out of her long gloves. 5. She heard herself saying afterwards to the amazement of her friends: "I simply took her _ home with me." 6. But happily at that moment the car stopped. 7. She was going to take a cigarette off the mantelpiece. 8. She had the table placed between them. 9. She plied the poor girl with everything and every time her cup was empty she filled it with tea.