The sales of drugs is controlled by law in most of countries.

In the United States, a party can nominate a single candidate for office.

Hypertension is one of the most widespread and potential dangerous diseases.

There were so many members of the political party who had gone against the leader that he resigned.

If petrol price go up any more, I shall have to use a bicycle.

I didn’t go to work this moring. I stayed at home because of the morning rain.

Now I understand why you moved out of that house.

Helen Keller, blind and deaf from an early age, developed her sense of smell so finely that she could identify friends by their personal odors.

Studies of climatology indicate that volcanic dust in the atmosphere may contribute to the onset of ice ages.

The use of lasers in surgery has become relatively commonplace in recent years.

Before the earthquake hit the area,many minor tremors were felt.

The museum dismissed the curator after some of the oldest paintings were damaged.

We watched as the plane disappeared behind the clouds.

The new cow boy-film catches the fancy of the children.

In the 1776 pamphlet "Common Sense," Thomas Paine defended the cause of the American Revolution.

Victoria Holtand William Shakespeare are prolific writers.