Even smallest pulley can be done stronger by adding wheels to its system to create leverage

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• After driving for twenty miles, he suddenly realized that he has been driving in wrong direction.

• Why did all the customers at the Red Lion have to pay off pay off their beer week?

• Being the biggest expanse of brackish water in the world, the Baltic Sea is of special interesting to scientists.

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• The shore patrol has found the body of a man who they believe to be the missing marine biologist.

• The international Red Cross, which has helped so many nations, won the Nobel Peace Prize three times for efforts to reduce human suffering

• In the United States, about 75 percent of the total tomatoes crop is processed juice, caned tomatoes, sauces, pastes, and ketchup.

• Every scientist knows that gravity is the force that maintains the earth and the planets in its orbits around the Sun.

• When the sky is blue and the sun is shining, you may say to your friends "____________"

• Polio, one of a group of spinal inflammations, causes fever and paralysis often resulting in disabled and deformity.

• The Humber River and its valley form a major salmon-fishing, lumbering, hunting , and farmer region western Newfoundland, Canada.

• New uses for plastics were found during the 1950’s and 1960’s in medicine, space, research, industrial, and architecture

• Now I _    all day, so it doesn't matter.

• When Cliff was sick with the flu, his mother made him to eat chicken and rest in bed

• Some critics have called Theodore Dreiser’s book Sister Carrie irst  modern novel because it broke so many traditions

• Scuba diving is usually carried out in the ocean in that people can explore underwater world.

• The first vaccine developed was used to combat and fight a smallpox, a disease resulting from infection by a virus.

• Rice is most important plant Viet Nam

• A number of the Pacific Islands are volcanoes that have pushed up from ocean floor, the others are the tops sunken mountain ranges.

• Agronomists study crop disease, selective breeding, crop rotation, and climatic factors, as well content and erosion

• Before his death, John Dewey saw his philosophy have a profound influences on education and thought in United States and elsewhere.