Bài luyện tập TOEFL 9

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1. The scholarly interest in perception stems largely from questions about the sources and validity of what ____.

 
 
 
 

2. Because of the Aleuts’ constant exposure to cold weather, they have long recognized ____.

 
 
 
 

3. Almost all economists agree ____by trading with one another.

 
 
 
 

4. The development of mechanical timepieces spurred the search for ____ with which to regulate them.

 
 
 
 

5. Anthropology is a science ____anthropologists use a rigorous set of methods and techniques to document observations that can be checked by others.

 
 
 
 

6. Although pecans are most plentiful in the southeastern part of the United States, they are found ____Ohio and Illinois.

 
 
 
 

7. ____of caffeine can result in restlessness, insomnia, and even delirium.

 
 
 
 

8. Considered one of the leading poets in America today,____.

 
 
 
 

9. Variables such as individual and corporate behavior ____nearly impossible for economists to forecast economic trends with precision.

 
 
 
 

10. ____by transferring the blame to others is often called scapegoating.

 
 
 
 

11. In the United States, both the federal and state governments have laws designed to guard consumers against deceptive advertise.

 
 
 
 

12. Gore Vidal has steadily pursue a literary career remarkable for its productivity, versatility, and unpredictability.

 
 
 
 

13. When overall exports exceed imports, a country said to have a trade surplus.

 
 
 
 

14. Instructors at the school of American Ballet first examine a young applicant’s instep to see whether it is pliant and shows promising of a good arch.

 
 
 
 

15. Anthropologists agree that our primitive ancestors who inhabited the tropics probably have natural protection against the sun.

 
 
 
 

16. Behavior modification techniques work best with problems that manifest itself in overt actions.

 
 
 
 

17. Because they are generally taken simply to obtain a recognizable and relatively clear image, most nonprofessional photographs demand few equipment.

 
 
 
 

18. At birth, an infant exhibits a remarkable number of motor response.

 
 
 
 

19. Common to North America, those cinnamon fern is found in wet places.

 
 
 
 

20. The origins of the Democratic party is often traced to the coalition formed behind Thomas Jefferson in the 1790’s to resist the policies of George Washington’s administration.