Упр. 2. Выберите правильный вариант: 1. We have only haziest notions about the religions of ancient foragers. We don’t know which spirits they prayed to / have prayed to / had prayed to.
2. During the past 500 years modern science has achieved / had achieved / will have achieved wonders thanks to enormous donations into scientific research.
3. There was never / has never been / had never been real peace in the world.
4. I will do /will be doing / will have done it in a moment.
5. After the workers went / have gone / had gone home, she and her children picked up and neatly piled all debris in a corner.
6. We will arrange / will be arranging / will have arranged time for you to visit the office.
7. Within a year or two the brown needles will drop / will be dropping / will have dropped.
8. The island wilderness that has seemed / had seemed / will have seemed so large while we were hiking now appeared small and strangely vulnerable.
9. Up to these days the place offers / has offered / had offered scientists excellent opportunities for studies of plant and animal ecology.
10. He will reach / has reached / will have reached the North Pole by next week.