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1. I have learned Japanese for 3 months. 2. May has been working for a non-profit organization since I graduated. 3. Kim has been unemployed for half a year. 4. I miss my friend. I haven't seen her for months. 5. We have lived in the dorm since our first year at university. 6. Jim and Jane have known each other for quite a long time. 7. The baby's hungry. He hasn't eaten anything since the morning. 8. Have you used this laptop for 4 years? 9. They've been close friends since they started college. 10. My grandmother has been a vegetarian for several years. 1. have eaten 2. have made 3. has started 4. have turned 5. Have they paid 6. has taken 7. have finished 8. Have you ever eaten 9. hasn't come 10. have worked 11. Have you ever been 12. haven't done 13. have just seen / has already done 14. have just decided 15. has been 16. hasn't had 17. hasn't played 18. haven't had 19. haven't seen 20. have just realized 21. have gone 22. have you known 23. have you taken 24. Has she eaten 25. has lived 26. has he lost 27. has the milkman left 28. have bought 29. has written 30. have finished 1. I had never heard that song before. 2. They haven't come yet. 3. Jim has already invited Anna to his party. 4. John and Julie have had their house for about two years. 5. She hasn't taken her driving test yet.