13. The train (had left) by the time we (reached) the station.

14. Tom (had been) in love with Diane for a long time before he (proposed) to her.

15. The room (looked) beautiful as she (had changed) the furniture and the curtains.

1. By eight o'clock yesterday I (had done) my homework and at eight I (was playing) the piano.

2. By six o'clock father (had come) home and at six he (had) dinner.