1. Felt, went
2. Where did you spend
3. Have you ever spent
4. Met
5. I have never visited
6. He visited
7. I have just got
8. Did you take
9. He was already gone
10. Were you
11. Left, was
12. He has not yet come
13. Has he gone
14. When did you see
15. I haven’t seen him
16. Has improved, I saw
17. Have you passed... I passed, I haven’t bought
18. He has already moved... he found, he has been