1 studied
2 haven't seen - saw
3 has worked
4 were playing
5 Has Bill arrived - arrived
6 has liked
7 leave
8 saw - phoned
9 have had
10 saw -was going - didn't see
11 have known - was
12 finishes
13 haven't seen - met
14 sits - is sitting
15 to wear
16 has worked
17 are repairing
18 had
19 to study
20 enjoyable
21 restful
22 interesting - interested
23 entrance
24 picnicking
25 enjoyably - restful
26 unlucky
27 has just met - met
28 came - was talking
29 could speak
30 arrived - met
31 lending - cashing
32 walking - go
33 making
34 reading
35 seeing