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Exercise 1
1, has seen
2, have finished
3, have lived
4, has just washed
5, has never been
6, have discussed
7, have known
8, have learnt
9, have been
10, have stayed
Exercise 2
1, has ever seen 
2, has lent
 3, has just passed
4, has already told
5, han't taken
6, has read
7, have been
8, has worn/ has moved
9, haven't seen
10, haven't contacted
11, have / studied
12, have / seen
13, have never seen
14, are / have been
15, have seen
 16, has losed
17, have just told