6. прочитайте и переведите предложения. поставьте модальные глаголы в past simple или future simple tense.1. a buyer can maximize utility but he prefers to have less rather than more. (past simple)2. we must know the effect of a price change on the whole output for making economic forecasts. (future simple)3. the consumer has to solve the problem of choice. (past simple)4. not all partners in a firm must take an active part in management. (past simple)5. provided additional inputs are to be obtained, producers must have smaller risks of a fall of price. (future simple)

1. A buyer could maximize utility but he prefers to have less rather than more. (Past Simple)
2. We shall have to know the effect of a price change on the whole output for making economic forecasts. (Future Simple)
3. The consumer had to solve the problem of choice. (Past Simple)
4. Not all partners in a firm had to take an active part in management. (Past Simple)
5. Provided additional inputs will have to be obtained, producers must have smaller risks of a fall of price. (Future Simple)