Вставьте: “since”, “for”, “already”, “just” or “yet”.
1. John has … finished his homework, so his books are still on the table.
2. I haven’t seen Sarah … 1990.
3. Have you … finished eating? I haven’t even started … .
4. We’ve lived here … ten years.
5. He’s … come back from jogging and he’s a bit tired.