1. My sister doesn't cook as well as my brother.
2. After I went to school, I had had breakfast at home.
3. Despite the terrible storm, no one was injured.
4. If today were Sunday, I wouldn't have to go to school.
5. Many natural disasters have been caused by global warming.
6. Noise pollution causes a change in animals's living patterns.
7. If people didn't throw rubbish in the street, the street would look attractive.
8. The pilots suddenly went on a strike, so all flights had to be cancelled.
9. A lot of are going to be planted in the schoolyard.
10. If I had enough money, I could buy this motorbike.
11. In spite of being tired, they tried to finish their project on time.
12. My friends told me that they might go sightseeing in Sapa the following week.
13. Because his room is untidy, his mother is unhappy.