1. When we got on the plane, the pilot told us to get off again.
2. Before we took a look around the shops, we had lunch
3. After the light had gone out, we got out of the office
4. By the time she had explained everything clearly, we started our work
5. Dozens of homes near a Central Phillipine mountain were buried by a massive landslide.
6. A tsunami warming has been lifted after a strong earthquake.
7. Tsunamis can be caused by Submarine volcanic eruptions.
8. My grandmother told me that there had been no cell phones a long time before.
9. Two days ago, Tom phoned me and told he couldn't come in that day, because he was sick
10. Maya said to Sara "I talked to a robot in the exhibition"
11. Peter said he had seen the New-Tech Exhibition the night before.
12. Due to the awful weather, we didn't enjoy our camping holiday
13. Water pollution happens lead to many aquatic animals such as fish can die
14. Because the climate is changing, the Earth is getting warmer
15. Sue was exposed to radiation when she was young, so she is suffering from skin cancer
