Ćwiczenia Gramatyka - ćwiczenia Since i for – ćwiczenia 26 czerwca, 201520 grudnia, 2017 Admin ćwiczenia, since i for Ćwiczenia. Present Perfect – użycie for i since Complete the sentences with for or since. 1. May2. six weeks3. ten minutes4. Christmas5. a long time6. an hour7. nine o'clock8. Sunday9. three days10. this morning