3 In non-defining clauses we can use which with other wh- words. Rewrite the sentences using which and another wh- word. Example: I went to Paris last month, and it was then that I met my new boss. I went to Paris last month, which was when I met my new boss. 1 She gave me her email address, and that was the way we managed to contact her later. 2 I spent the money on a new car, as I had always planned to do. 3 Her face was red, and that was the way we knew she was upset 4 He left at six, and that was the time she arrived 5 The actor forgot his words, and so at that moment they brought the curtain down. 6 I had a holiday in Spain, and that was the place I learned to swim​.