1 arrived- was sleeping
2 went - were having
3 was having - stopped
4 were crossing - saw
5 saw - was standing
6 were playing - came
7 rang - was taking
8 was sitting - saw
9 were cleaning - came
10 was learning - had
11 went - was shining
12 were walking - began
13 had - was repairing
14 started - were playing
15 ate - were talking
16 dropped - was washing
17 was writing - rang
18 were watching - failed
19 was walking - found
20 were taking
21 were having - dropped
22 called - wasn't - was studying
23 didn't hear
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