20. The explorers sailed on the ocean for two weeks and ____ found the mysterious land.

A. generally　　　 B. eventually　　　　 C. extremely　　　　　 D. gradually

19. This dictionary is famous for its rich ____.

A. entrances　　　 B. exits　　　　　　 C. languages　　　　　 D. entries

18. Only those who have enough courage and determination can ____ the difficulty they meet with.

A. undertake 　　　B. upset　　　　　　 C. overcome　　　　　 D. download

17. The strong earthquake lasted over minutes. ____, most of the buildings in the city fell down.

A. As a result　　　 B. On the other hand　 C. As a matter of fact　　 D. On the contrary

16. With the help of the villagers, the firefighters managed to ____ the big fire which broke out in the chemical works.

A. put on　　　　 B. put away　　　　 C. put out　　　　　　 D. put off

15. Leave her words alone. What she said doesn’t ____ to you.

A. fit　　　　　　 B. suit　　　　　　 C. apply　　　　　　 D. concern