1. major adj. →__________(n.)　 　　 　　　2. wealthy adj.→__________(n.)

25.Fifteen years later the Qin Dynasty was ______________ (推翻).

24.It was a different story for China with the _____________ (形成) of the Sui Dynasty in AD 581, which once again r___________ China in AD 589.

23.There is another _____________ (相似点) between China and Rome.

22. During the same period, there was much c___________ and fighting between the groups of people who ruled the different parts of China.

21. In 753 BC, the city of Rome was founded, and in 509 BC, it became a r____________.

20. A national m___________ was built in Pear Harbor just above the remains of the sunk battleship Arizona.

19. The next day, US President Franklin Roosevelt d______________ war against Japan.

18.Pear Harbor is one of the m___________ military bases of the United States.

17.Jack is a concerned c__________(市民).