1 cleaned
2 didn't play
3 did you watch / didn't enjoy
4 didn't go
5 did you see / had
6 helped / did
7 fell and broke / happened
8 fought / were
9 stopped / was
10 where did you go
11 what time did she get up
12 how long did the journey take
13 what did you do
14 who discovered
15 who wrote
16 who did you go with