V. Перепишите следующие предложения, определите в них видо-временные формы глаголов и укажите их инфинитив. Переведите на русский язык. 1. Fisher studied science and philosophy at Yale. 2. Yale did not have an Economics Department at the time. 3. A mathematical technique is invaluable in economics. 4. Principles of money and prices form the basis of monetarism today. 5. He is most famous today for his theory of interest and capital, studies of an ideal world.