Anyone reproducing copyrighted works without permission of the holders of the copyrights are breaking the law.

The notion that students are not sufficiently involved in their education is one reason for the recently surge of support for undergraduate research.

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

A motion picture provides us with both entertainment but also knowledge.

Spell correctly is easy with the aid of a number of word processing programs for personal computers.

When a patient's blood pressure is much higher than it should be, a doctor usually insists that he will not smoke.

Although Nam worked very hard, but he didn’t pass the final exam.

What happened in New York were a reaction from city workers, including firemen and policemen who had been laid off from their jobs.

Dinosaurs became extinct millions of years ago because of the earth's climate changed drastically.

The two children tried as hardly as they could to bring about a reconciliation between their parents.

The deadbolt is the best lock for entry doors because it is not only inexpensive but installation is easy.

Because her sickness she didn’t take part in the English competition held in Sunday.

I was amazed that Smith showed so few grief at his mother’s death.

Aristotle, the famous Greek philosopher, believed that the brain was an organ that cooled a heart.

His health gets good and better because he does gymnastics regularly.

It is time the government do something to help the unemployed to find some jobs.

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

Two weeks are plenty of time to finish the assignment.

If I could speak two languages last years, I would have got a good job.

Today the number of people enjoying winter sports are almost double that of twenty years ago.

You shouldn’t criticize him in front of his friends. It was insensitive of you.