The sentence at the time of completion

1. You've learnt surfing from him, haven't you? The water skiing you learned from him, isn't it?

2. He has turned off the light. He has turned off the light.

3. Have you found your pen yet? Have you found your pen yet?

4. He has lived here since 1978. He has lived here since 1978.

5. I have been in the army for more than 5 years. I have been in the army for more than five years.

6. I have heard nothing from him up to now. So far I don't have any information about him.

7. Have you ever traveled on a plane? Have you traveled by plane?

8. Have you ever been abroad? Have you ever been abroad?

9. I've just finished reading the book. I just finished reading the book.

10. I've never been there. I never went there.

11. I've already been there twice. I have only been there twice.

12. Who has been to Hawaii? None of us has. Who has been to Hawaii? No one has been there.

13. Has anybody water-skied before? Has someone slipped past the water before?

14. How long have you been here in Sydney? How long have you been in Sydney?

15. I know you've come to see your father. I know you are coming to see your father.