Since или for. Урок английского языка

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

2. I haven't met Jill sincefor the end of the school.

3. We've been together only sincefor a few days.

4. She has been in hospital sincefor Monday.

5. He hasn't played the piano sincefor he was a boy.

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

7. He's been working in the field sincefor early this morning.

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.