Complete the sentences using the correct relative pronoun or relative adverb. 17. Jane, …favourite hobby is fencing, also loves swimming. 18. A doctor is someone … helps treat sick people. 19. I don’t know the boy … plays Peter Pan in this film. 20. This is the town … my father was born. 21. He explained … he did it. 22. 2004 was the year … we competed in the skateboarding tournament