If endangered species _________________ saved, rainforest must be protected.

The average spoken sentence in conversational English takes 2.5 seconds ____________________________.

Only twenty years ago, most doctors agreed ____________________ truthful with their terminally ill patients, a trend that has reversed itself in modern medical practice.

William Torrey Harris was one of the educators interested ____________ a logical progression of topics in the school curriculum.

North American Indian tribes used sign language _____________________ with tribes that spoke a different language or dialect.

Air constricted between the vocal chords makes them ________________, producing sounds.

If gasoline vapor ________________ with air, combustion will occur.

If a person does not have an attorney, the court ____________________ one.

Art tends to be __________________ more after the death of the artist, but most literary works tend to decrease in value when the writer dies.

On average, a healthy heart ______________________ to pump five tablespoons of blood with every beat.

Even without strong wings, the ostrich has survived because it ____________ at high speeds to escape predators.

The two main _________________ are permanent magnets and electromagnets.

When water is frozen, it becomes __________.

In the fall, most trees lose ______________, which have, by then, turn from green to gold and orange.

Doctor have concluded that in addition to regular exercise, a diet rich in ______________ is good for the heart.

Seals can _____________ because they have a thick layer of blubber under their fur.

The constellation Orion is easily recognized by ______________ three vertical stars.

Wolves, which are known to travel in packs, both provide for and defend ______________ through group cooperation.

Although orchids, give the appearance of being very fragile, they are actually very hardy plants _________ indoors during the winter months.

The data on the winter migration patterns of the monarch butterfly is very _____________.

According to a recent survey, ____________ doctors do not have a personal physician.

_____________ like McDonald's and Kentucky Fried Chicken have used franchising to extend their sales internationally.

_____________ in the world export diamonds.

Uranus is just ___________________ to be seen on a clear night with the naked eye.

The Pilgrims ___________ seven thousand dollars at 43 percent interest to make their journey in 1620.

Although blood _________________ in urine and stool samples, it cannot always be detected without the aid of a microscope.

The audible range of frequencies for human beings ______________________ between 20 and 20,000 Hz.

People with exceptionally high intelligence quotients may not be the best employees since they ___________________ unless the job is constantly changing.

_______________________________ 250,000 species of fossils have been discovered in both organized, scientific searches and by sheer accident.

A dancer, while always graceful and precise in her movements, trains ____________ any other athlete.

It is not clear how much students learn ______ television classes without supervision and monitoring.

In spite of the fact that 85 percent of all societies allow the men to take more than one wife, most prefer monogamy _____________________ polygamy.

The lights and appliances in most homes use alternating current _____________________.

There are many beautifully preserved historic buildings ______________________.

The tendency to develop cancer, even in high-risk individuals, can be decreased _______________________ the amount of fruit and vegetables in the diet.

If one of the participants in a conversation wonders _____________________, no real communication has taken place.

Neptune is an extremely cold planet, and __________________.

Cooking oil made from corn does not become saturated when heated, and ___________________.

Digital clocks, however precise, ___________________ because the earth's rotation changes slightly over the year.

Microwaves are used for cooking, telecommunications, and _____________.

A vacuum will neither conduct heat nor __________.

The color of a star depends on the heat and _______________.

The Cabinet consists of secretaries of departments who report to the president, give him advice, and _____________ decisions.

Paper money ___________ by the Continental Congress in order to finance the American Revolution.

The Scholastic Aptitude Test (SAT) ____________ by high school students as a requirement for admission to many colleges.

_____________________ are kept as pets in almost every country in the world.

The PTA ____________ parents and teachers who support the school by fund-raising and other activities.

"Chicago" is a poem __________________ in praise of one of the busiest industrial centers in the U.S.

Camp David ________________________ the official country home of the U.S. presidents.

How many musical notes of the 11,000 tones that the human ear can distinguish _________________ in the musical scale?

Nine of every ten people in the world _____________________ in the country in which they were born.

The average temperature of rocks on the surface of the earth ______________ 55 degrees F.

The examiner made us _________ our identification in order to be admitted to the test center.

Fast-food restaurants have become popular because many working people want ________________.

The Customer Price Index lists ____________________.

Canada does not require that U.S. citizens obtain passports to enter the country, and _______________.

Calculus, __________ elegant and economical symbolic system, can reduce complex problems to simple terms.

An abstract painter and pioneer of Surrealism, ___________ and symbolic images.

One of the world's greatest rivers, __________________________.

Before the 1800s, when William Young made different shoes for right and left feet, shoes _________________ on either foot.

In the Middle Ages, the word "masterpiece" referred to a work that ____________________ by a journeyman in order to qualify as a master artisan.

The Greek historian Herodotus reported that one hundred thousand men ________________ for twenty years to build the Great Pyramid at Gizeh.

Before he died, Armand Hammer _________ an extraordinarily diverse business empire, including interests in oil, livestock, cattle, grain, and art.

The North Pole ___________ a latitude of 90 degrees north.

The city of Beverly Hills is surrounded on ________________________ the city of Los Angeles.

The greenhouse effect occurs __________________ heat radiated from the Sun.

Featured at the Henry Ford Museum __________________ of antique cars dating from 1865.

People who reverse the letters of words _______________ to read suffer from dyslexia.

Rubber __________ from vulcanized silicones with a high molecular weight is difficult to distinguish from natural rubber.

If a rooster lays a egg on a slanted roof which side will it fall?

What is Tritunggal Anniversary theme this year?