Choose the correct answer:
1. They were surprised because they the news.
2. They back because they had lost their keys.
3. By the time the plane reached its destination, one of the passengers .
4. They a lot about the city because a fire had destroyed its buildings.
5. By the time she out her camera, the lion had run away.
6. Tom and Alice were hungry because they anything all day.
7. When they the car, they realised the driver had disappeared.
8. Investigators went to the place where the witness the ghost.