20. ____ the days when we lived a hard life.

　 　 A. Away　 　　 　B. Going are　 C. Gone are　　　 D. There were

19. Diana sold most of her things. She has hardly ____ left in her house.

　 A. anything　　 B. everything　　 C. nothing　　　 D. something

18. Scientists think that the continents ____ always where they _____ today.

　 A. aren’t; are　　　　　　　　 B. aren’t; were　

C. weren’t; are　　　　　　　　 D. weren’t; were　

17.________only 20 minutes left, I felt uneasy in the taxi to the railway station.

A. For　　　　 B. As　　　　　 C.Because　　　　 D. With

16. When I told the manager I didn’t receive the goods on time, he promised to _____it at once.

A. look into　　　　　　　　 B. look through　

C. look after　　　　　　　　 D.look over

15. -What do you think of the meal we have just had?

　 -It is well worth_________is charged for it.

　 A. that　　　 B. what　　　　 C. which　　　　 D. how many