Написать 10 предложений по английскому в Past Perfect

1. The book hadn’t been written by 1980.2. She had finished writing letters by 10 o’clock.3. Had the train arrived by that time?4. I hadn’t bought the presents by that time.5. What had been done by that time?6. Why hadn’t you got to the station by then?7. The play had already finished when my parents arrived.8. Mary bought a new ring yesterday, as she had lost her old one.9. As I hadn\'t got him on the telephone, I sent him a message.10. We had hardly arrived at the hotel, when it started to rain.