1 had been working 2 had Sarah been waiting 3 had been walking 4 had been talking 5 had been playing 6 had been driving 7 had been performing.
1 switched - had already started 2 was dancing -drinking -left 3 wasn’t raining - decided 4 had finished -gave 5 wanted -had invited 6 finished -called -had begun 7 had been studying-managed 8 got off- was raining 9 had been looking -offered