A mainframe computer is large and is usually used to operate (a network of ano computers.

The signing of peaceful treaty was an event of major importance.

Choose the best option:

That’s the doctor for ................ Cliff works.

My father doesn’t know speak English 

All of  the mammals, dolphins are undoubtedly among friendly to human.

When he took the ticket out of from his pocket, a hundred dollar bill fell to floor without noticing.

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

Until recently, photocopy machines were regarded strict as business and professional office equipment that required  lot of expensive service.

The Red River, so named because of the red-colored sediment carries, it is on of the main branches of the Mississippi.

Running along 180th meridian, the International Date Line is separated day from another

To see the statueLiberty and taking picture from the top of Empire State Building are two reasons for visiting New York City.

Choose the word or phrase among A, B, Cor D that best fits the blank space :
There is a wide choice of leisure activities so crew members are …….. to take along their personal choice of entertainment.

The Egyptians first discovered that drying fruit preserved it, made it sweeter and improvement flavor.

Some methods to prevent erosion are plowing parallel with the slopes of hills, to plant trees on unproductive land, and rotating crops.

There has not been a great response to the sale, ____?

Without any hesitation, he did decision not to take the course

The Unita Mountains of north-eastern Utah are the only range of mountains in North America that runs from East and West for entire length

The term “metabolism” refers to chemical changes which by living things transform food into energy.

Even the most discriminating gourmet will agree that food in the south is as good as any other regions in country.

In the 1840s, Joseph Henry made discovery of electromagnetism.

The amount of books in Library of Congress is more 58 million volumes.