Ngữ pháp tiếng Anh - 02

Despite claims that filters and low-tar tobacco make smoking somewhat safer, in fact they only marginally reduce, ............. eliminate the hazards.

The Louisiana Territory, an area ............. the size of France, was bought by the United States from France for $15,000,000 in 1803.

So far there is no vaccine ............. in sight for the common cold.

............. , human beings have relatively constant body temperature.

Cellulose, which ............. for making paper, can be found in all plants.

Birds all over the world ............. in distances up to thousands of miles.

............. that increasing numbers of compact-disc players will be bought by consumers in the years to come.

The cosmopolitan flavor of San Francisco is enhanced by ............. shops and restaurants.

Within an area of only 100 miles, Death Valley sinks to 282 feet below sea level while Mount Whitney ............. to a height of 14,494 feet.

Chosen as the nation's capital at the end of the American Civil War, ............. a city of over a million people.

Partnership is an association of two or more individuals who ............. together to develop a business.

In the preparation of fibrous material for production uses, stiff woody fibers from plants ............. fibers from animal sources.

Built at the beginning of the century, the Library of Congress houses one of the largest ............. collections of books in the world.

Kitchen appliances called blenders became ............. in the 1930s, when Stephen J. Poplawski developed a machine that excelled at making his favorite drink.

Hollywood, the heart of America's motion picture industry, ............. of Los Angeles a century ago.

It is possible ............. may assist some trees in saving water in the winter.

People usually can get a sufficient amount of the calcium their bodies ............. from the food they consume.

............. the promotion of health and to helping people avoid injury and disease.

It is good form to use the name of the person ..............

In order for people to work together effectively, they need ............. each other's needs.

Forty-niners ............. to California for gold in 1848.

............. occasions for congratulations.

Ernest Hemingway is ............. of modern fiction.

............. is no way to tell the exact number of heroin addicts in the United States.

Generic medications are just as ............., and much less expensive.

............. ants live in colonies, keep farms, go to war, carry off slaves, and have a society somewhat like human beings.

Poison oak generates irritating poisons ............. even if people merely brush against the plants.

It is only recently that ballets have been based on themes ............. American life.

Because aluminum is lighter and cheaper ............., it is frequently used for high-tension power transmission.

Helen Keller lost both her sight and hearing after a severe illness .................

Alice Freeman, ................. to head Wellesley College at age 27, is one of the youngest college presidents in history.

The strongest dump trucks work in rock quarries, ................. tons of rocks and soil at one time.

................. problems in sailing in tropical seas is the coral reefs.

Most accidents in the home can be prevented by ................. elimination of hazards.

Each mediocre book we read means one less great book that we would otherwise have a chance ..................

Using a globe can be ................. it is educational.

The growth of two-income families in the United States .................. of people moving to a new social class.

................. strength of 70 horses, a forklift toils all day long in a warehouse lifting great weights.

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................. their territories but rather than fight, they howl.

It is gravity ................. objects toward the earth.

Between the California Coast Range and the Sierra Nevada .....................

Black, red, and even bright pink diamonds ......................

Some monkeys, ................., use their tails in a way similar to a hand.

Van Gogh's "Sunflowers" .............. $39.9 million, three times the previous record.

Elephants scratch themselves with sticks ..................

................. for overall health.

Total weight of all the ants in the world is much greater than .................

Physical fitness exercises can cause injuries ................. the participants are not careful.

Tuna, ................., may weigh up to 1,000 pounds.

Before ................., they used horse-drawn wooden carts.