Choose the best relative pronoun: 1) The secretary didn't know the exact hotel where her boss would stay in London. 2) The café which is near our house was the place we decided to meet at. 3) The teacher asked Mary who wasn't prepared well for the lesson and got a bad mark. 4) This was the castle which was mentioned in the story. 5) The woman whose son had won the race was very happy. 6) The book which I read yesterday impressed me very much
