Above 80 percent of the laborers at the construction site are temporary workers.

A calorie is the quantity of heat required to rise one gallon of water one degree centigrade at one atmospheric pressure.

In the beginning, radios cost much more than they do today because they turned out slowly and expensively by hand

Don't leave here, _    ?

They agreed with waiting for me if I was late.

Since rats are destructive and may carry diseases, therefore many cities try to exterminate them

After writing it , the essay must be duplicated by the the student himself and handed into the department secretary before the end of the month.

Most of the magnesium used in the United States comes from the sea water.

George Washington, his portrait appears on the quarter coin and the dollar bill, served two terms as president.

Nowhere he could find a good place to study, so he returned to his dorm.

Police sealed off the town – centre for two hours meanwhile they searched for the bomb.

The news today are always full of stories about people who are unhappy.

Running along the 180th meridian, the International Date Line is separated one day from another

Had we known the traffic would be so bad, we did not drive back from work so early.

You are listening to music, ...................  ?

Choose the correct answer to complete the sentence. "Global warming occurs ______ the greenhouse gases in the atmosphere trapthe heat from the sun."

Floods, earthquakes and other natural disaster happen all over the world, causing death and material damage.

Chocolate is prepared by a complexity process of cleaning, blending and roasting cocoa beans, which must be ground and mixed with sugar.

Nuclear powers production in the us is controlled by the Nuclear Regulatory Commission [NRC].

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

The American anarchist Emma Goldman infused her spirited lectures, publishes, and demonstrations with a passionate belief in the freedom of the individual.