8.　　　　 Our holidays are l_____ to weeks a year.

7.　　　　 The discovery of radium was a very important part of the scientific k______ of the modern world.

6.　　　　 Radioactivity is very important part of modern science, medicine and i______.

5.　　　　 He used the power to i______ his belief on others.

4.　　　　 In g______ lessons we learn about all kind of countries and their people.

3.　　　　 They were poor and f______ in debt.

2.　　　　 You are f______ in being able to live in the country. I think you are very happy.

1.　　　　 His f______ newspaper was the Times. He likes it very much.

10.　 You are not very r______( 合乎情理　 ) if you expect a child to understand such a deep theory.

9.　　　 The school promised r______( 迅速　 ) results in the learning of languages.