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. We have received no news sincefor 5:30 pm.
2. I haven't slept sincefor 48 hours.
3. We haven't seen Mary sincefor the party.
4. You have been watching TV sincefor hours.
5. Dinosaurs have been extinct sincefor over 60 million years.
6. Jane has worked here sincefor two weeks already.
7. These cherry trees have bloomed every spring sincefor 1980.
8. I haven't talked to him sincefor last week.
9. They have been raising horses and cows on their farm sincefor many years.
10. Joe and Josephine have been going out together sincefor Valentine's Day.
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