After Allan had searched for twenty minutes, he realized that his jacket had been laying on the table the entire time .

The first vaccine ever developed was used to combat and fight a smallpox, a disease resulting from infection by a virus.

Polio, one of a group of spinal inflammations, causes fever and paralysis often resulting in disabled and deformity.

The government’s budget maybe considered balanced when the amount of money it spends does not exceed the amount it receives.

The police at first knew where the bandit was hiding , but later lose track of him.

Chocolate is prepared by a complexity process of cleaning, blending and roasting cocoa beans, which must be ground and mixed with sugar.

To remove stains from permanent press clothing, carefully soaking in cold water before washing with a regular detergent.

Philosophy, the inquiry into the nature of  human knowledge, it is still a very popular subject among university students

President Wilson had hoped that World War I be the last great war, but only two decades later, the Second World War was erupting

In some species of fish, such the three-spined stickleback, the male, not the female, performs the task of caring for the young.

I’m so tired; I’m finding it difficult in keeping my mind on my work.

Those of  you who signed up for Dr. Daniel’s anthropology class should get their books as soon as possible.

Mr. Brown bought ..............new car ..................last week. 

............. winter is usually cold, but .................. winter of this year is warm. 

After driving a car for ten miles, John suddenly realized that he has been driving in the wrong direction

Karen hasn’t decided still if she wants to run for the Presidency again this year.

The diameter of the Sun is more than one hundred times greater than the Earth.

It is possible for local wildlife to coexist ...... industry.

In 1991, Antonia Novello, the Unites States Surgeon General launched several programs to address particular problem that young people have

Under any circumstances will late arrivals be admitted to the theatre before the interval.

After the team of geologists had drawn diagrams in their notebooks and wrote explanations of the formations which they had observed, they turned to their camp-side to compare notes.