1.
A well-known large natural lake is Lake Tahoe, ................. straddles the
California-Nevada border.
2.
Before ................., they used horse-drawn wooden carts.
3.
Tuna, ................., may weigh up to 1,000 pounds.
4.
Physical fitness exercises can cause injuries ................. the participants are
not careful.
5.
Total weight of all the ants in the world is much greater than .................
6.
................. for overall health.
7.
Elephants scratch themselves with sticks ..................
8.
Elephants scratch themselves with sticks ..................
9.
Van Gogh's "Sunflowers" .............. $39.9 million, three times the previous
record.
10.
Some monkeys, ................., use their tails in a way similar to a hand.
11.
Black, red, and even bright pink diamonds ......................
12.
Between the California Coast Range and the Sierra Nevada .....................
13.
It is gravity ................. objects toward the earth
14.
................. their territories but rather than fight, they howl.
15.
................ strength of 70 horses, a forklift toils all day long in a warehouse
lifting great weights
16.
The growth of two-income families in the United States .................. of people
moving to a new social class.
17.
Using a globe can be ................. it is educational.
18.
Each mediocre book we read means one less great book that we would
otherwise have a chance ..................
19.
Most accidents in the home can be prevented by ................. elimination of
hazards.
20.
................. problems in sailing in tropical seas is the coral reefs.
21.
The strongest dump trucks work in rock quarries, ................. tons of rocks
and soil at one time.
22.
Alice Freeman, ................. to head Wellesley College at age 27, is one of the
youngest college presidents in history.
23.
Helen Keller lost both her sight and hearing after a severe illness .................
24.
Because aluminum is lighter and cheaper ............., it is frequently used for
high-tension power transmission
25.
It is only recently that ballets have been based on themes ............. American
life.
26.
Poison oak generates irritating poisons ............. even if people merely brush
against the plants.
27.
............. ants live in colonies, keep farms, go to war, carry off slaves, and
have a society somewhat like human beings.
28.
Generic medications are just as ............., and much less expensive.
29.
............. is no way to tell the exact number of heroin addicts in the United
States.
30.
Ernest Hemingway is ............. of modern fiction.
31.
............ occasions for congratulations.
32.
Forty-niners ............. to California for gold in 1848.
33.
In order for people to work together effectively, they need ............. each
other's needs.
34.
It is good form to use the name of the person ..............
35.
............. the promotion of health and to helping people avoid injury and
disease
36.
People usually can get a sufficient amount of the calcium their bodies
............. from the food they consume.
37.
It is possible ............. may assist some trees in saving water in the winter.
38.
Hollywood, the heart of America's motion picture industry, ............. of Los
Angeles a century ago.
39.
Kitchen appliances called blenders became ............. in the 1930s, when
Stephen J. Poplawski developed a machine that excelled at making his favorite
drink.
40.
Built at the beginning of the century, the Library of Congress houses one of
the largest ............. collections of books in the world.
