Since или for. Урок английского языка

1. We have received no news sincefor 5:30 pm.

2. We've been friends with Fred sincefor decades.

3. I haven't slept sincefor 48 hours.

4. We've lived here sincefor seventeen years.

5. She has been in hospital sincefor Monday.

6. They have been ill sincefor Monday.

7. These cherry trees have bloomed every spring sincefor 1980.

8. They have been raising horses and cows on their farm sincefor many years.

9. New ideas have been put into practice sincefor he was elected our leader.

10. They've been teaching here sincefor quite a long time.