Odpowiedź:
1 John didn't know anything about the rock climbing because he hadn't done it before.
2 Had he become a cardiologist by the age of thirty?
3 First, Alicia felt dizzy and then she passed out.
4 Before I left the building, I quickly put on a face mask.
5 He was able to swim in the race because he had seen a physiotherapist a week before.
Wyjaśnienie: