Правило: since и for.
В каждом предложении выберите подходящий по смыслу предлог (since или for).Например: We've been working here (since / for) this morning. – We've been working here since this morning.
1. I haven't worked sincefor a mounth.
2. My boss has been away sincefor half a day only.
3. I've read two books sincefor the weekend.
4. They have been ill sincefor Monday.
5. Jane hasn't been back to Hungary sincefor last year.
6. Dinosaurs have been extinct sincefor over 60 million years.
7. I haven't talked to him sincefor last week.
8. He's been working in the field sincefor early this morning.
9. They have been raising horses and cows on their farm sincefor many years.
10. He worked at that company sincefor ten years before he retired.
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