3. The air is polluted by factories every day.
4. The criminal was caught by police two hours ago.
5. The football match was canceled by thunderstorm yesterday.
6. Cars were baned in the city center two days ago.
7. People were rescued from burning house three hours later.
8. The city was left in ruins by earthquake two years ago.
9. The chance was missed by bad weather yesterday.
10. Trees were uprooted by tornado three weeks ago.