Since или for. Урок английского языка

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

2. You haven't smoked sincefor two months.

3. We've lived here sincefor seventeen years.

4. I haven't worked sincefor a mounth.

5. They have been ill sincefor Monday.

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

7. Dinosaurs have been extinct sincefor over 60 million years.

8. Jane has worked here sincefor two weeks already.

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

10. Joe and Josephine have been going out together sincefor Valentine's Day.