0. The hotel where we stayed was in the mountains. The hotel in which we stayed was in the mountains. (with a relative pronoun) The hotel we stayed in was in the mountains. (without a relative pronoun) 18. Thats the box where we keep the books. ............................................................................................. ............................................................................................. 19. The girl to whom John was talking is my sister. ............................................................................................. ............................................................................................. 20. The house where I spent my childhood has been demolished. ............................................................................................. ............................................................................................. 21. Thats the man to whom he spoke on the day of the murder. ............................................................................................. ............................................................................................. 22. The friend who I was travelling with spoke German. .............................................................................................