In a person’s lifetime, brain can store 100 trillion pieces of informations

Rattan, a relative of bamboo, is often used to make tables, chairs, and other furnitu.

The sum of all chemical reactions in organism’s living cells are called its metabolism

The girls were sorry to had missed the signers when they arrived at airport.

Many theories on conserving the purity of water has been proposed but not one has been widely accepted as this one.

Mr Ross, our old history teacher ruled his classes by a rod iron

Most of the magnesium used in the United States comes from the water.

Choose the word which has a different stress pattern from the others.

It was suggested that Tom studied the document more thoroughly before attempting to pass exam

We chose to take a trip to the FaEast because it was advertised adventurous and intrigued

Duke University in North Carolina has an outstanding collecting documents concerning history

Floods, earthquakes and other natural disaster happen all over the world, causing death and damage

Stuart stopped to write his letter because he had to leave for hospital .

Because not food is as nutritious for a baby as its mother’s milk, many women are returning practice of breast feeding.

The Egyptians first discovered that drying fruit preserved it, made it sweeter and improvement flavor.

Why did all the customers at the Red Lion have to pay off pay off their beer week?

Early radio was called the “wireless” because radio invisibly waves to carry information

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

Australian koalas are furry, gray animalthat live in trees and feed on leaves

You need to study hardly is you don’t want to fail your exams

The knee is more likely to be damage than most  joints because it is subject to tremendous forces during vigorous activity.