It was not when he talked to her that he knew the truth.

United States is aimed at develop friendly relations among nations based on respect for the principle of equal rights and self-determination of people.

The assumption that smoking has bad effects on our health have been proved.

Unlike the old one, this new copier can perform their functions in half the time.

The Great Pyramid of Giza is said to have built over a 20-year period.

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

Folklore consists of the beliefs, customs, traditions, and telling stories that people pass from generation to generation.

Oxygen plays a important role in maintaining live.

To everyone's surprise, it wasn't in Bristol which he made his fortune, although that’s where he was born.

There are many reasons why a particular species may become endangering.

For the first time in the history of the country, the person who recommended by the president to replace a retired justice on the Supreme Court is a woman.

It is important that cancer is diagnosed and treated as early as possible in order to assure a successful cure.

The Oxford English Dictionary is well known for including many different meanings of words and to give real examples.

It has ever been told that teaching is one of the more noble careers.

Air pollution, together with littering, are causing many problems in our large, industrial cities today.

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

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

Mai and Lan have a row because they have misunderstood one another.

Mother’s Day is the day when children show their love on their mother on.

Manufacturers may use food additives for preserving, to color, or to flavor, or to fortify foods.

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