Collecting stamps, phaying chess and to mount beautiful butterflies are derrick’s hobbies.

Narcissus, a character in mythology, gazed at his own image in a pool so ardently that he fell into itself and downed.

Abraham Lincoln was a good president and was self-educated, hard working and always told the truth.

Slowly and with care, the museum director removed the Ming vase from the shelf and placed it on the display pedestal.

The master of ceremonies announced in a loud and clear voice and told that the dinner would be late due to unforseen circumstances.

She wishes that we didn’t send her the candy yesterday because she’s on a diet.

Jason’s professor had him to rewrite his thesis many times before allowing him to hand it in.

This apprentice has spent two weeks to work on that new machine.

Today's job seekers are confronted with such question as "Are you computer literate?" and "Can you set up a data base?" 

Robots in the home might not be enough creative to do the cooking, plan the meal and so on.

The chief of police demanded from his assistants an orderly investigation, a well-written report, and that they work hard.

Ecologists are trying to preserve our environment for future generations by protecting the ozone layer, purifying the air, and have planted the trees that have been cut down.

The puppy stood up slowly, wagged its tail, blinking its eyes, and barked.

What happened in New York were a reaction from city workers, including firemen and policemen who had been laid off from their jobs.

Do most boys and girls give a great deal of  thought to their future employ ?

Spell correctly is easy with the aid of a number of word processing programs for personal computers. 

Conservation is the safeguarding and preservation of nature resources.

The deadbolt is the best lock for entry doors because it is not only inexpensive but installation is easy.

Before went abroad, he had finished his English course at the English-speaking Center.

Teddy Roosevelt demonstrated  his competitive spirit and tireless energy in 1905 whenever he led the Rough Riders up San Juan Hill

The mother asked her son if he would have the floor clean the day before.

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

Please tell us the reason when he left without saying goodbye.

When a patient’s blood pressure is much higher than it should be, a doctor usually insists that he will not smoke

Unless there had been a heavy storm, the climbers will not have died.

When many of my friends take a shower in the morning, I usually take one before bed.

It is interesting to compare the early stylized art forms of ancient civilizations to the modern abstract forms of art.

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

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

I was amazed that Smith showed so few grief at his mother’s death.

The Greek historian Herodotus reported that one hundred thousand men are employed for twenty years to build the Great Pyramid at Gizeh.

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

Working provide people with personal satisfaction as well as money.

When mining for gold, you must first obtain the gold ore and then apart the gold from the ore. 

Because blood from different individuals may different in the type of antigen on the surface of the red cells and the type of antibody in the plasma, a dangerous reaction can occur between the donor and recipient in a blood transfusion. 

Dinosaurs became extinct millions of years ago because of the earth's climate changed drastically. 

The amount of women earning Master's Degrees has risen sharply in recent years.

Although Nam worked very hard, but he didn’t pass the final exam.

Neither his parents nor his teacher are satisfied with his result when he was at school.

People are not allowed enter the park after midnight because of lack of security

He has made a lot of mistakes in his writing because his carelessness.

If you need to keep fit, then why not take on a sport such as badminton or tennis?

There is a severe famine in Somalia, and thousands of people are dying from hunger.

Instead of calling off the meeting, maybe we can just put it over until next month. 

She has disappeared three days ago, and they are still looking for her now.

He said that he has done his homework since 7 o'clock.

By the time the police come the robber had run away.

We are going to visit our grandparents when we will finish our final exams.

Mrs. Stevens, along with her cousins from New Mexico, are planning to attend the festivities.

In the end of the party, Mary found herself washing the dishes alone again, as usual.