Complete the sentences with the past simple or past perfect form of the verbs in brackets:

1. I missed the train! When I ___ to the station, it ___ five minutes before (get/leave)
2. The film ___ by the time I ___ to the cinema (start/get)
3. She ___ him for seven years before he ___ her to marry him (know/ask)
4. We ____ London before we ___ there last year (not visit/go)
5. I ___ the exam yesterday because I ___ for if before (fall/not study)