A warning printed on a makeshift lifebuoy says: “This is not a life-saving device. Children should be accompany by their parents.” 

Of all the art-related reference and research library in North America, that of the Metropolitan Museum of Art in New York City is among the largest and most complete.

When precipitation occurs, some of it evaporates, some runs off the surface it strikes, and some sinking into the ground.

The student must have her assessment form fill in by the examiner during the oral exam.

A novel is a story long enough to fill a complete book, in that the characters and events are usually imaginary.

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

When you are writing or speaking English it is important to use language that includes both men and women equally the same. 

The workers are building a new bridge which is 150 meters in high.

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

The children next door are a real nuisance . Their football is always coming on the fence and damaging the flowers in my garden.

In very early times, people around the fire were entertained by storytellers with stories of heroes’ wonderful actions and victory.

Mrs. Alien was concerned about me having to drive  so far  every day.

The company did not want to hire a man that his experiment was so limited.

Ralph wishes that he went to the bank this morning before he went to work. 

Reading several books on that subject, Bill considered himself an expert.

It is very difficult for human beings fighting pollution.

My mother doesn’t care how much does the washing machine cost because she is going to buy it anyway.

To reduce pollution, we have to stop using many things that makes our life comfortable.

If today is Sunday, we would have a lot of fun at the camping site.

If the goal keeper had playing better, they would not have lost the game.

Dislike the gorilla, the male adult chimpanzee weighs under 200 pounds.

Two weeks are plenty of time to finish the assignment.

When she heard the news, she got so a shock that she dropped her glass.

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

In a federal form of government like that of the United States, power is divided between the legislative, executive, and judicial branches.

Some of my friends are good at English while other are good at Mathematics.

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

Excavations in some villages on the east bank (A) of the Euphrates River have revealed (B) an ancient community that had been laying (C) under later (D) reconstructions of the city of Babylon.

The police is looking for the bank robbers who stole a large sum of money from the bank.

We have been making prepare for our final exammination for two months .

In today's competitive markets, even small businesses had better to advertise on TV and radio in order to gain a share of the market.

Despite she was in her middle age, she looked very graceful and charming.

Did you say that you will have a lot of things to do the following week ?

Sex's education is instituted to help the student understand the process of maturation, to eliminate anxieties related to development, to learn values, and to prevent disease.

The workers went on strikes because of they thought their wages were low.

The chemistry instructor explained the experiment in such of a way that it was easily understood.

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

Because they had spent too many time considering the new contract, the students lost the chance to lease the apartment.

There are much kinds of books in my school library,but readers cannot borrow them.

Increasing involvement in agriculture by large corporations has resulted in what is known as agribusiness-that is, agriculture with business techniques, including heavy capitalization, specialization of production, and to control all stages of the operation.

He has a great deal of books most of which are on science and technology.

By the mid-nineteenth century, land was such expensive in large cities that architects began to conserve space by designing skyscrapers.

He was very surprised when he visited London, in that the drivers always drive on the left hand side of the street. 

It was her who represented her country in the United Nations and later became ambassador to the United States. 

Has the government made a decide to ban the use of chemical weapon yet ?

There is only a few food for dinner. I think you should buy some more to eat.

In spite of my father is old , he gets up early and does morning exercise.

Thanks for the liberation of women, women can now take part in social activities.

Geochemistry includes the study of the movement of elements from one place to another as a result of processes chemical.

Despite America’s affluence, many people are without jobs, on welfare, and have a lot of debts.