1. A professor of economy and history at our university developed a new
theory of the relationship between historical events and finincal crises.2 During our tour of the refinery, it was seen that both propane and gasoline were produced in large volumes.
3. Publishing in the US, the book has won a number of awards in recent regional book fairs.
4. Hardly did he enter when all the lights went out.
5. The first important requirements for you to become a moutain climber are your strong passion and you have good health
6. I found my new contact strangely at first, but i got used to them in the end.
7. The old woman cannot remember the place which she kept her savings.
8. The word "scuba" is actually an acronym that comes of the phrases " self-contained" underwater breathing apparatus
9. The bigger of the three daily meals of years ago, the ancient palace is popular with modern tourists.
10. Many people have found the monotonous buzzing of the vuvuzela in the 2010 World Cup matches so annoyed
Giải thích?