НАДО 1.4. Contrast the Present Perfect with the Present Perfect Progressive Tense.1. She (travel) around Europe for two months and (visit) six countries so far. 2. We (be) students of this University for the last twoyears, 3. He (talk) for hours and soon he will have to stop. 4. Theworkmen (build) our new building since last May. 5. My brother re-cently (enter) the University. 6. My teacher (correct) notebooks for3 hours and not (finish) yet. 7. I (understand) everything you (say)for the last twenty minutes. 8. His father (smoke) for 20 years andnow (be advised) by his doctor to stop. 9. He not (visit) us since1990. 10. I (wait) for him since half past eight and now I'll wait onlyfor another five minutes. 11. He (walk) ten miles. 12. We (talk) forthree hours. 13. You (walk) too fast. That's why you are tired. 14.1(darn) socks all the morning. 15. How many pairs you (darn)? 16. He(eat) since he arrived. 17. The boy (eat) seven ice-creams. 18. I (sleep​

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