1. Since their whole relationship was based on lies and …………….. , they broke up only after a few months.

2. Caffeine has many ………… effects that people that use it in their daily lives may not be aware of.

3. Veterinary medicine has become far more sophisticated than it was in the past, which can be attributed to the increase in household pets and ……………….. to the demand for better care of them.

4. The suspect ………….. intending to kill him when questioned by the police.

5. If the examinees do not take permit card for the examination, they are not ……… to take part on the examination.

6. The internet has …………… changed the way people communicate with one another.

7. A few days ago, I ………. a very rare CD while I was looking for a gift to give to a friend.

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

9. The teacher entered the classroom as the students were ……. trying to finish their assignment.

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

11. In order to ………. information, one must know of, and be able to use, the information sources.

12. In this part of the country, a third of the population is …………… in the coal mining industry.

13. Thunderstorm and lightning posed a significant threat to the safety of the performers on stage so they had to ………….. the show.

14. Asbestos was ……… used in construction before 1990, so any building material more than 30 years old should be handled very carefully.

15. The doctor couldn’t tell the patient with any ………….. what the outcome of the operation will be.

16. Orangutans are ………. vegetarian, and their diet consists mostly of fruit and leaves from the tree, although their carnivorous tendencies may extend to the occasional insect.

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

18. Political geography can be ………….. changed overnight as a result of war, revolution, or other political upheavals

19. Every region’s linguistic and cultural identity is quite ………….. from that of the rest of country.

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