16. He has to work hard because he has a big family to s　　　　 .

15. It is interesting to know that some astronauts took walks in o　　　　 space.

14. There is no p　　　　　 　that they can finish the work ahead of the time because of te bad weather.

13. Whether Arafat was m　　　　　 　or died naturally is still unknown to the world yet.

12. The police are trying to find the w　　　　 to the accident.

11. Looking at her p　　　　　　 　expression, I see that she still hasn’t understood the problem.

10. He made a new 　　　　　　　(科学的) discovery.

9.Do you know the rich lady in _________(毛皮衣)at my sister's birthday party.

8. The elephant is the largest land　 animal in ______________(存在)。

7.He dived in the Indian Ocean many times looking for ____________(财宝) .