1) took - taken
2) got - got
3) forgot - forgotten
4) excused - excused
5) hid - hidden
6) picked - piked
7) read - read
8) wrote - written
9) heard - heard
10) broke - broken
11) sent - sent
12) found - found
13) ate - eaten
14) felt - felt
15) bought - bought
16) drove - driven
17) knew - known
18) spoke - spoken