Once in a while I visit my grandparents on the farm and stay there for some days.

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

The teacher gave some suggestions on what could come out for the examination.

Peter didn’t mean to be disrespectful to his teacher. He just couldn’t control his temper.

The government is not prepared to tolerate this situation any longer.

He’s really delighted with his success.

Childbearing is the women's most wonderful role.

He made one last futile effort to convince her and left home.

S. Mayo Hospital in New Orleans was so named in recognition of Dr. Mayo’s outstanding humanitarianism.

Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness.

The education system is a mirror that reflects the culture.

Most of the school-leavers are sanguine about the idea of going to work and earning money.

The event, watched by millions of people all over the country, takes place annually.

Ralph Nader always speaks out about everything.

The yearly growth of the gross national product is often used as an indicator of a nation's economy.

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

The first few days at university can be very daunting, but with determination and positive attitude, freshmen will soon fit in with the new environment.

The related publications are far too numerous to list individually.

We decided to pay for the car on the installment plan.

We can use either verbal or nonverbal forms of communication.

Reaching 35 and obviously aging, Jane has to make up her mind on her future very soon.