69. They recently () a survey of young people for a morecomprehensive understanding of what they want in life and work.

20. Carmen’s mother Maria had just () a serious heart attack.But without a heart transplant her life was in constant danger.

19. The students expected there ()( more reviewing classes before the college entrance examination, but, to their disappointment, all the classes were finally canceled.

18. Satellite communications are so up-to-date that even when () in the middle of the Pacific, businessmen can contact their offices as if they were next door.

17. Students are advised to understand the () difference in meaning between the two words “surroundings” and “environments”.

16. Jack doesn’t know what to () after the university as he just cannot make up his mind; besides jobs are rare in the economic recession.

15. Cultures differ enormously ()( decision-making, particularly in how quickly decisions should be made.

14. Unless a child’s daydreaming is ()( him from progressing in school, there is no need to discourage it.

13.You can always find a good tech advisor if you want someone to ( ) the work done by the development company.

12.It is clear that ( ) effort that employees invest in this process ( ) reward will be for them.

11.He has had so many encounters in his career, and his life is full of exciting memoirs of a ( ) police officer.