1) met
2) has started
3) were you doing
4) went
5) was walked, attacked
6) swam
7) was playing
8) has finished
9) sat
10) had worked
11) am washing up, was watching
12) looked for, looked fot
13) has been
14) did you see
15) was he driving
16) was cooking, was laying
17) did yoi vote
18) catched
19) did