I
20. Have you ever been in Ho Chi Minh yet?
- No, I haven't been there yet. But my parents have been there twice this years.
21. She's got the best voice I have ever heard.
22. Since when have you learnt English?
- I have learnt it since I was a girl of twelve.
23. They have done nothing since they got up.
24. I have written two letters already.
25. I flied over Loch Ness last week.
- Have you seen the Loch Ness monster?
27. This is the first time the children have traveled by planed.
28. Have you been here before ?
- Yes, I spended my holidays here last year.
29. Has the newspaper come?
- yes, Ann is reading it.
30. Shakespeare has written a lot of plays.
II.
1.
-I haven't known her for 2 years.
-Have you known her for 2 years?
2.
- Tom hasn't been to Hanoi before.
- Has Tom been to Hanoi before?
3.
- We haven't lived for 10 years.
- Have you lived for 10 years.
4.
- They haven't worked with my father recently.
- Have they worked with my father recently?