1. When did the first festival take place?
2. How many people celebrate Diwali?
3. Burning man is held in a desert.
4. Why is the Cannes film festival held?
5. Tet usually occurs in late January or early February.
6. (Because) streets in the city are always crowded with traffic, (so) traffic jams often happen.
Câu này thì chỉ dùng 1 là "because" hoặc là "so" chứ không dùng cả 2 cùng một lúc
7. Nam is chosen as the monitor of the class.
8. It is thought that solar energy will be used as the main energy source in Vietnam in the future.
9. His parents are always satisfied with his behaviour.
10. Although they spent a huge amount of money ont he film, it wasn't a big success.
