19. Contrary to the belief that it could not sink , the ship sank after hitting an iceberg , ____ all the passengers on board.

A. killing　　 B. having killed　　 C. to have killed　　 D. killed

18. A snake can’t choose but hibernate in winter days while a cat needn’t. The reason for that _____ a snake is a cold-blooded animal while a cat is a warm-blooded one.　

A. lies　　 B. lies in　　 C. lies in that　　 D. lies in what

17. The project, while ____ , has enjoyed great popularity among the teenagers.

A. left unfinished　　 B. left unfinishing　　 C. leaving unfinished　 D. leaving unfinishing

16. ---I was exhausted after such a long walk.

---Why not find a seat _____ to make you ____?

A. to sit; relaxed　　　 B. on which to sit ; relaxed　　

C. to sit on ; relax　　 D. which to sit ; relax

15. It was without any hesitation ____ I gave away what I had in my pocket to the boy .

A. that　　 B. what　　 C. which　　 D. X

14. Nobody could have had _____ childhood than myself. Instead of children’s play and adventure , I was driven by a desire to study.

A. the happier　　 B. a happier　　 C. happier　　 D. the happiest

13. His father sent him to Paris to study ____law , but instead Verne developed his love for ____theatre.　

A. the ; the　　 B. the ; x　　 C. x ; x　　 D. x ; the

12. He spent more time working than he _____ company with his family.

A. did keeping　 B. did keep　　 C. did to keep　　 D. did on keeping

11. A clean environment can help the city bid for the Olympics , which ____ will promote its economic development.

A. in return　　 B. in turn　　 C. in advance　　 D. in time

10. The Internet has _____ the idea ____ we are living in the “Information Age”.

A. give rise to ; that　 B. give rise to ; what　　 C. give birth to ; that　 D. give birth to ; what