Inventing by Roger Bacon, the magnifying glass led to the creation other scientific tools which have produced measurable scientific progress.

Jessamyn West’s first and most famous novel, the friendly persuasion, describes he life of the Quaker farmed family the mid-1800’s.

A film isn’t worth to watch, whatever its subject, unless it engages viewer’s mind and makes him think.

The food that Mark is cooking in kitchen is smelling delicious.

A light year is the distance that light travels in one year calculated using the speed of 186,284 miles the econd as a base.

When the children realized that they were themselves in the dark, they became really frightening.

I advised him about the low ceilings in the house but he took no notice and hit the head three times.

Colleges in the newly formed United States, in recovering from the adverse effects of the American Revolution, inaugurated a broad curriculum response of social demands

I was talking to a businessman_______ works with my father. 

Many of the important products obtained from trees, one of most important is wood pulp, which is used as paper-making 

Interestingly , United States both produces or uses more crude than any other nations

Transfer taxes are imposed on  sell or exchange of stocks and bonds.

In human beings, as in other mammal, hairs around the eyes, in ears and in a nose prevent dust, insects, other matters from entering these organs.

Some psychologist believe that those who are encouraged to be independent, responsible, competent in childhood are likely more than others become motivated to achieve.

Find the mistakes and correct

Hoover Dam in Nevada is multi purpose structure that provides flood control, hydroelectric powerful, and drinking and irrigation water 

A seismograph oscillation of the ground caused seismic waves, vibrations that travel) from its point of origin through the Earth along its surface.

In about, experiment psychologist have devoted mamny research to learning than to any other topic.

Many exercises such as calisthenics, running, or swim involve producing muscle tension through a range of movement that are called isotonics.

The number 8.5 is an example of a “mixed number” because it is composing of an integer and a fraction

Ballet performer must be believable actor and actress as well as expert

I noticed we were running lowly on petrol after we had passed the last filling station