Поставьте модальный глагол или его эквивалент в нужном времени (Present, Past or Future).
1. The role and importance of an automobile arose from the fact that it (can) move along roads without rails.
2. Changes in agricultural practices often (to need) to make a ma- chine adaptable to increase its effectiveness.
3. From ancient times a man (have to) use proper equipment for high crop production.
4. In future the automotive engineer (may) know much more than just mechanical engineering.
5. The design engineer (must) always know enough about the manufacturing capabilities of the supplier.
2. When I came home yesterday evening, the dinner was ready.
3. I was thinking of you as you walked into the room.
4. The children never ride their bikes on the road.
5. My elder brother often used to help me with my homework.
6. Where did you find my keys? I lost them two days ago.
7. It was O’K in the beginning but then everything went wrong.
8. I am trying to concentrate but it’s not easy with all this noise.
9. They were arguing about something all day. It sounded serious.
10. While I was reading a book to my son he fell asleep.