Complete the sentences with the past perfect or past perfect continuous of the verbs in brackets. 1 It had been raining (rain) for an hour by the time they found shelter.
2 By the time Frank found a garage, Steve (already/fix) the car.
3 It was the first time Maria (ever/see) a waterfall.
4 (you/wait) a long time when the helicopter arrived?
5 Before he went to Chile, my uncle (not/be) abroad.
6 Nora (not/swim) for very long when she saw the shark.