A thunder usual follows lightning by five seconds for every mile between the flash and observer

Almost all ships move through the Suez Canal with their own power, large ships must be assisted by a tugboa

The homes created by (legendary architect Frank Lloyd Wright are still viewed as uniquely,novative, and valuable.

Since it was so difficult for American Indians to negotiate a peace treaty or declare war their native language , they used universal understood form of sign language

The better you are at English, more chances you have to get a job international organizations.

Each chemical (element is characterized to the number of protons that an atom of that element contains, called its atomic number.

Find mistakes and correct

Do you think what people have smoked less and less?

The intent of  the Historical Society is restore old buildings and the increase of interest in the history of area.

Before she moved to California, with much more milder climate, Betty found that her health improved considerably

If dinosaurs would have continued roaming earth, man would have evolved quite differently

The modern American dictionary is typically a single compact volume published with modest price.

A 1971 U.S government policy not only put warnings on cigarette but also ban television advertising of cigarettes.

When her son, Nick fell and injured his knee, she refused to pay for a doctor and spent many hours looking up free medical help

British people living outside  UK have to become accustomed to the image of Britain that appears to exist all throughout round the world

Frank Wright has been acclaimed by colleagues as the greater all modern architects

We all know the man is a thief, don’t we? – Yes, .......... knows, but .............. dares to say so publicly.

Although they reflect a strong social conscience, Arthur Miller’s stage works are typical more concerned ith individuals than with system.

Light can travel from the Sun to the Earth eight minute and twenty seconds.

The medical problems of parents and their children tend to be very similar to because of the heredit nature of many diseases

Contrary to popular belief, bananas are grown on the soft stalk of a leafy plant and on trees with wood trunks.

Visitors may realize that even though they can’t make their homes in Da Lat City, they can take away with them memories their beauty .