Write for or since in the following sentences: 1. Sam hasn't been here ________ a month. 2. Kate has lived there ________ 2005. 3. I have come to you ________ three weeks. 4. Bob has been in Washington ________ Monday. 5. I haven't seen her ________ ages. 6. Sally has been in hospital ________ April. 7. They have known Kate ________ 2 years. 8. We have planned to stay there ________ 2 days. 9. They have been friends ________ their childhood. 10. Tom has been in the office ________ 6 o'clock. 11. She has worked here ________ a week. 12. My uncle has lived in Paris ________ February. 13. He has been a doctor ________ 14 years. 14. I have come to Madrid ________ 3 days. 15. Alice has come to Liverpool ________ a month.