Have and do

Answers

1. Have you known him for long?
2. Does she speak English?
3. Where could they have gone?
4. Would he be able to do this?
5. Did you manage to find him?
6. Did she say anything?
7. I went there but I did not see anyone.
8. He does not know what he is doing.
9. He has never been to Australia.
10. She does not get along with her neighbors.