1. Alfred Nobel was quick to the industrial openings for his inventions and built up almost 80 companies in 20 countries. 
2. health, many retired Americans choose to move to the sunny southern states. 
3. We must study the phenomenon that some of our top college students prove to be uncompetitive when they with society.  
4. The new technique for growing rice will certainly the increase of crop yields on a large scale.  
5. As China is also a target of international terrorist acts, its government against terrorism.