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. We've lived here sincefor seventeen years.

4. I haven't worked sincefor a mounth.

5. My boss has been away sincefor half a day only.

6. I've read two books sincefor the weekend.

7. Jane hasn't been back to Hungary sincefor last year.

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

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

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