Поставьте глаголы в правильном времени. 1. Columbus (discover) America more than 500 years ago. 2. I (not see) you for more than a week. 3. I (not eat) brown bread since I was in Moscow. 4. Since when (you know) him? 5. Old George (not be) here for years. 6. They (come) here a month ago. 7. He (not speak) to me for over three weeks. 8. How long ago (you arrive) here? 9. I (buy) one like it a month ago. 10. We (finish) our supper an hour ago. 11. She (not have) a holiday for four years. 12. I (not play) the violin since I was a little boy. 13. My brother (not write) to me for months. 14. I (not see) you since we met a year ago.