1. 1) I saw
2) Did you touch
3) were
2. 1) did you go
2) i bought
3) what did you buy?
3. 1) Have you finished
2) I finished
3) Have you typed
4) Yes, i have already typed it
4. 1) Have you ever been
2) Yes, i went there
3) Where did you stay
4) I stayed at