For thousands of years, man has created sweet-smelling substances from wood, herbs and flowers and using them for perfumes or medicine.

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• An ambitious person is committed to improve his or her status at work.

• The Red Cross organizes and leads relief assistance missions after natural disasters such as floods, tsunamis, earthquakes, and homelessness.

• The master of ceremonies announced in a loud and clear voice and told that the dinner would be late due to unforseen circumstances.

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• In spite of my father is old , he gets up early and does morning exercise.

• Chemical engineering is based in the principles of physics, chemistry, and mathematics.

• Sometimes it takes me about three hours finishing my round.

• Conservation is the safeguarding and preservation of nature resources.

• The leader demanded from his members a serious attitude towards work, good team spirit, and that they work hard.

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

• Practicing his speaking English everyday, his hope was to get a good job in a foreign company.

• Henry David Thoreau was an American writer who is remembered for his faith in religious significance of the nature.

• The developing of the submarine was hindered by the lack of a power source that could propel an underwater vessel.

• Many young people lack skills, good education, and financial to settle in the urban areas where many jobs are found.

• Increasing involvement in agriculture by large corporations has resulted in what is known as agribusiness-that is, agriculture with business techniques, including heavy capitalization, specialization of production, and to control all stages of the operation.

• Neither of the men arresting as terrorists would reveal information about his group.

• The University of Kentucky has held this prestigious title until 1989, when it was granted to the University of Georgia.

• Sex's education is instituted to help the student understandthe process of maturation, to eliminate anxieties related to development, to learn values, and to prevent disease.

• On the wedding day, the groom's family and relatives go to the bride’s house bring gifts wrapped in red papers.

• How much times did Rich and Jennifer have to do the experiment?

• After spending two days arguing about where to go for their holidays, is was decided that they shouldn’t go anywhere.