Petroleum is composed of a complex mix of Hydrogen and Carbon.

Frank Lloyd Wright has been acclaimed by colleagues as the greater of all modern architects

It is large island, few people live there, though.

The biologist found some pollutants, a little of which can be considered very harmful to fish and other living organisms in the river.

Though he did not develop sign language, Laurent Clerc brought it on America from France

The midnight sun is a phenomenon in which the Sun visible remains in the sky for twenty-four hours or longer.

There are many different ways of comparing the economy of one nation with those of another.

The more important theorem of all in plane geometry is the Pythagorean Theorem

Canada is made up of ten provinces and two territories, with governmental powers being divided between the federal government or the provinces.

Every student  must make up their own study list of the classes he is going to take at the beginning of the quarter 

In 1991, Antonia Novello, the Unites States Surgeon General launched several programs to address particular problem that young people have

Vaslov Nijinsky achieved world recognition as both a dancer as well as a choreographer

There is nothing to eat, _    ?

Disease is not as widespread than before because of better preventive medicine and vastly improved nutrition.

“Are we lost?” “I’m afraid we are. If only we ____ a map with us.” 

Some bacteria are extremely harmful, but anothers are regularly used in producing cheeses, crackers, and many other foods.

In England as early as the twelfth century, young boys enjoyed to play football.

It would be both noticed and appreciating if you could finish the work before you leave

Light can travel from the Sun to the Earth in eight minute and twenty seconds.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Air water and soil are necessary things to our _________.

Nuclear energy, despite its early promise as a source of electrical power, is still insignificant in compared with older and safer energy sources.