1.
1. _____ of classical ballet in the United States began around 1830.
2.
2. Mason bees are solitary bees, which means _____ in colonies like honeybees or bumblebees.
3.
3. Long before the advent of written literature, _____ their myths and stories in oral poems told by successive generations.
4.
4. Comparative anatomy is _____ classification of both plants and animals.
5.
5. Although legend has it that the Pilgrims first set foot in America on Plymouth Rock in 1620, _____ documentary evidence confirming this.
6.
6. Despite its fishlike form, the whale is _____ and will drown if submerged too long.
7.
7. Clouds _____ in warm air rises, cools, and condenses.
8.
8. Portland, _____, is located primarily on two hilly peninsulas overlooking Casco Bay and its many islands.
9.
9. Mars, the so-called red planet, is actually colored red by iron oxide and other impurities _____ the whole surface.
10.
10. The 1903 film The Great Train Robbery was the first significant film in which the classic western story's formula of crime and retribution _____.
11.
11. When played in certain ways, the bassoon can produce comical sounds, _____ it is sometimes referred to as the clown of the orchestra.
12.
12. In modern societies, _____ authorized body such as a legislature or a court makes the law.
13.
13. The sense of smell functions chemically, _____ the sense of taste, but it is 10,000 times more sensitive.
14.
14. _____ primarily from plant oils, perfumes were used in ancient times as incense in religious rites, in medicines, and later for adornment.
15.
15. Boise became _____ of the state of Idaho in 1864.
16.
16. The moon rotates (A) on its axis at the same rate that it revolves (B) around Earth, causes (C) the same side to face Earth at all times (D).
17.
17. The first successful vaccination (A) against a disease was developed by Edward Jenner, which work (B) laid the foundation for modern immunology (C) and preventive medicine (D).
18.
18. The Sahara Desert covers approximately (A) 9 million square kilometers, making it one of the larger deserts (B) in the world (C) today (D).
19.
19. Because (A) the invention of the telescope, astronomers were able (B) to observe distant objects (C) in greater detail (D).
20.
20. The chemical element oxygen is essential for life (A) because most living organisms depend on it (B) carrying out (C) metabolic processes (D).
21.
21. Although whales resemble fish in appearance, they are mammals that breathe air (A), nurse their young, and having warm blood (B) throughout their lives (C) today (D).
22.
22. The Internet has transformed communication by allowing people (A) exchanging information (B) almost instantly regardless of geographical distance (C) or time zones (D).
23.
23. The invention of the steam engine played a crucial role (A) in the Industrial Revolution by allow factories (B) to produce goods more efficiently (C) and economically (D).
24.
24. Radar can determine (A) the direction, distance, height (B), and speed of objects that are too much far (C) away (D) for the human eye to see.
25.
25. Establishing (A) outside Minneapolis, Minnesota, in 1976, the Minnesota Valley National Wildlife Refuge contains (B) more than (C) 9,000 acres of forests, prairies, marshes, and lakes (D).
26.
26. Most animals (A) have salivary glands what resemble (B) those in (C) humans (D).
27.
27. Used for making pottery (A), clay has two characteristics distinctive (B): it can be molded and it can be baked to form (C) a brittle but otherwise durable (D) material.
28.
28. The novels of Amy Tan are (A) popular among readers because they contains (B) interesting stories about family relationships and cultural identity (C) today (D).
29.
29. The symptoms of pneumonia (A), a lung infection (B), include high fever (C), chest pain, breathing difficult (D), and coughing.
30.
30. A basic premise of humanism is that people are (A) rational beings who possesses (B) the capacity for truth (C) and goodness (D).
31.
31. Modern batteries are designed (A) to provide reliable power for electronic devices and requires (B) very little maintenance under normal conditions (C) today (D).
32.
32. Leather has been used (A) for centuries in the production of clothing and footwear because it is both durable (B) and comfortably (C) to wear (D).
33.
33. Many species of birds migrate long distances each year to find (A) more favorable weather conditions and locating (B) adequate(C) food supplies for survival (D).
34.
34. The first successful airplane flight marked an important achievement (A) in transportation history and opened the way for rapidly development (B) of the modern aviation industry (C) throughout the world (D).
35.
35. The favored habitat (A) of the junco, a small sparrow, is a mixed or coniferous forest (B), despite it is (C) often noted in fields, thickets, and city parks (D).
36.
36. By studying (A) modern coral reefs, geologists and biologists hope to understand (B) mechanism of formation (C), migration, and entrapment of petroleum (D) in ancient reefs.
37.
37. Many researchers have collected valuable informations (A) about climate change through satellite observations (B) and field studies (C) over many years (D).
38.
38. Many students attend university to gain knowledge (A), develop professional skills (B), and preparing for future careers (C) in a competitive job market (D).
39.
39. Good students should attend (A) classes regularly, complete (B) their assignments on time, and participating (C) actively in discussions throughout the semester (D).
40.
40. Regular exercise can help people maintain a healthy weight (A), improve cardiovascular health (B), and reducing the risk of chronic diseases (C) throughout their lives (D).
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