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

Upon reaching the destination, a number of personnel is expected to change their reservations and proceed to Hawaii.

Would you mind showing me how working the lift?

If the goal keeper had playing better, they would not have lost the game.

There are some people in the government try to improve the lives of poor people.

People in every part of the world readily and easily communicates by means of electronic mail.

In the end of the party, Mary found herself washing the dishes alone again, as usual.

Had I been interested in that subject, I would try to learn more about it.

Of all the art-related reference and research library in North America, that of the Metropolitan Museum of Art in New York City is among the largest and most complete.

In the early 1900's, Pennsylvania's industries grew rapidly, a growth sometimes accompanied by disputes labor.

People are not allowed enter the park after midnight because of lack of security.

The number of women earning Master's Degrees have risen sharply in recent years.

The sates school system in England can be divided into two levels of educated: primary and secondary

Two weeks are plenty of time to finish the assignment.

Developing new technologies are time-consuming and expensive.

Although caffeine is a moderately habit-forming drug, coffee is not regarded as harmfully to the average healthy adult.

Species like snakes, lizards, coyotes, squirrels, and jack rabbits seems to exist quite happily in the desert.

The number of students attending universities to study economics have increased steadily in the last few years.

Because blood from different individuals may different in the type of antigen on the surface of the red cells and the type of antibody in the plasma, a dangerous reaction can occur between the donor and recipient in a blood transfusion.

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

The amount of women earning Master's Degrees has risen sharply in recent years.