Переведите предложения на русский язык, обращая внимание на типы условных предложений.
a) If incomes are rising, the demand for most goods and services will tend to increase.
b) If the price of butter fell, the demand for margarine would probably fall.
c) If production can be expanded very easily and quickly in re-sponse to an increase in demand, supply will be elastic.
d) If we don‘t install new equipment, we will become uncompeti-tive.
e) If I had known that I wouldn‘t have said anything.