4. When carbon is added to iron in proper _________ the result is steel.
5. You should try to _________ your _________ and be more realistic.
6. Please _________dictionaries when you are not sure of word spelling or meaning.
7. At yesterday's party, Elizabeth's boyfriend _________ us by _________ Charlie Chaplin.
8. She keeps a supply of candles in the house in case of _________.
9. The group of technicians are _________ in a study which _________ almost all aspects of urban planning.
10. The lecture which lasted about three hours was so _________ that the audience couldn't help _________.
11. The machine looked like a large, _________, _________ typewriter.
12. Though she began her _________ by singing in a local pop group, she is now a famous Hollywood movie star.
13. Within two weeks of _________, all foreigners had to _________ with the local police
14. These teachers try to be _________ when they _________ the integrated ability of their students.
16. There are various kinds of crimes, such as theft, bribery, _________, burglary, robbery, drug trafficking, smuggling, kidnapping, rape and _________.
17. The _________ should enjoy their _________ years in happiness.
18. Having _________ for other cultures can help you avoid unnecessary _________.
19. War is _________ when the _________ is to restore peace.
20. Once you become _________ to smoking, it will be hard for you to _________ the habit.
21. Life is not always what we expect. We are sometimes driven into a helpless or _________ situation.
22. Reality TV is very popular among viewers of all ages because it _________ _________ and companionship, _________ and monetary reward.
23. Non-smokers in many countries are _________ for the _________ of smoking in public places.
24. _________ an _________ view on aging can add years.
25. Lottery (彩票) winners should invest their money in _________ businesses or projects.
26. Remembering birthdays can help us _________ our lives.
27. Eye contact may _________ sincerity and attentiveness in some Oriental cultures but too much eye contact may _________ people in some western cultures.
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