Choose the best answer for each question.

1. A group of campers lost their way in the mountains because they had —- the fact that it was getting darker.

2. The teacher entered the classroom as the students were —- trying to finish their assignments.

3. Despite the string of successes, the Chinese team was shaken by the —- of the men’s doubles team of world champion.

4. When economic circumstances change, businesses need time to —-.

5. Scientists continue to develop —- methods which will improve animal well-being and further minimize the number of animals needed for testing.

6. In order to —- information, one must know of, and be able to use, the information sources.

7. In this part of the country, a third of the population is —- in the coal mining industry.

8. Thunderstorm and lightning posed a significant threat to the safety of the performers on stage so they had to —- the show.

9. If a child knows that he can never —- a bad behavior, then he is less likely to do it.

10. Asbestos was —- used in construction before 1980, so any building material more than 20 years old should be handled very carefully.

11. The doctor couldn’t tell the patient with any —- what the outcome of the operation will be.

12. Orangutans are —- vegetarian, and their diet consists mostly of fruit and leaves from the trees, although their carnivorous tendencies may extend to the occasional insect.

13. The time from when a(n) —- person is exposed to flu virus to when symptoms begin is about one to four days.

14. As in any business, one’s — to succeed depends on a lot of hard work, being in the right place at the right time, and a little luck.

15. Political geography can be —- changed overnight as a result of war, revolution, or other political upheavals.

16. Every region’s linguistic and cultural identity is quite —- from that of the rest of the country.

17. For any healthy business, there comes a point when the owners must decide to take the —- of a new growth strategy.

18. Aging research has —- dramatically in the last several years, with much now known of the biochemical and genetic components of aging.

19. The spokesman of the Labor Party claimed that many problems can be —- traced to unfavorable job conditions.

20. It is a sad fact that nowadays the pressure to be thin is so —- that even supermodels think they need to get rid of a few pounds.

21. It seems that the new taxes will put really big —- on citizens.

22. You can take out a —- from the bank with a low interest rate if you are willing to buy a car.

23. We had a(n) —- with the waiter about the bill since it was higher than we had expected.

24. Octopuses have a relatively short life span and some —- live for only six months.

25. Uranus is a planet in the solar system which is seventh in order of —- from the sun.

26. One of the President’s greatest —- was to decrease the unemployment rate in the whole country.

27. The automobile industry continues to be an important —- of employment and transportation for millions of people worldwide.

28. Regardless of the —- of his action, Jim had an argument with his boss about the working hours.

29. At the end of the trial, the minister was found —- of embezzling one million dollars of public funds.

30. Ottawa is home to a —- of national museums, official residences and heritage structures.