1 have never watched
2 watched
3 has read
4 read
5 had
6 have had
7 haven't seen ...saw
8rang
9 met..became
10 hasn't drunk
IV
1 has seen
2 have finished
3 have lived
4 has just watched
5have disussed
6has never been
7 have known
8 have learnt
9have been
10 have stayed
 

IV 
1. has seen
2. have finished
3. have lived
4. has jusst watched
5. have discussed
6. has never been
7. have known
8. have learnt
9. have stayed
10. have stayed