18
1. She (travel) around Europe for two months and (visit) six countries so far. 2. We (be)students
of this University for the last two years. 3. He (talk) for hours and soon he will have to stop. 4. The
workmen (build) our new building since last May. 5. My brother recently(enter) the University. 6.
My teacher (correct) notebooks for 3 hours and not(finish) yet. 7. I (understand) everything you
(say) for the last twenty minutes. 8. His father (smoke) for 20 years and now (be advised) by his
doctor to stop. 9. He not (visit)us since 1990. 10. I (wait) for him since half past eight and now I'll
wait only for another five minutes. 11. He (walk) ten miles. 12. We (talk) for three hours. 13. You
(walk) too fast. That's why you are tired. 14. I (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) on every
bed in this house. 19. He (sleep) since 8 o'clock. It's time for him to get up. 20. What a lovely
smell! Mary (make) jam. 21. I (look) for mushrooms but I (not find) any. 22. He (teach)
at school
for five years. 23. He(cough) a lot lately. He must give up smoking. 24. I (know) about it for ages.
25. It (rain) for hours. Is it ever going to stop?
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