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 friends with Fred sincefor decades.

4. I haven't worked sincefor a mounth.

5. We haven't seen Mary sincefor the party.

6. She has been in hospital sincefor Monday.

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

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

9. John and Bob have been working on this project sincefor five months already.

10. They've been in love sincefor three weeks.