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1 b 2 b 3a 4 saw . were sitting5. were travelling. met 6.was listening/ was doing 7.arrived/ were having 8.were listening/ became 9.was playing. was painting

1 b
2 b
3 b
4 saw - were sitting
5 were travelling - met
6 was listening - was doing
7 arrived - wew having
8 were listening - became
9 was playing - was painting

came - was having
was cooking - cut
was working - came
visited - saw - spent
got - were sitting