Nobody knows the truth, _    ?

David is talking to his friend, _    ?

Julie’s mother abandoned her when she was a few of months old and she grew up in an orphanage.

A progress has been made toward finding a cure for AIDs

It is estimated that about 640 women remain illiterate in ............ world, mostly in developing countries. 

Before dinosaurs became extinct, plant life is very different on Earth.

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

Halifax is largest city and chief port of Nova Scotia and is the eastern terminus of Canada’s two great railway systems.

There are some wild roses whose flowers smell sweetly.

Few people realize that the musician of the national anthem of the United States originally belonged to the British drinking song.

Approximately 80 percent of farm income In Utah are derived from livestock products

Choose the correct answer to complete the sentence. "Global warming occurs when the greenhouse gases in the atmosphere trapthe heat_______ the sun"

Do you ever feel that life is not being fair to you because you cannot seem to get the job where you want or that really suits you?

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

The health of our children is being ...... by exhaust fumes.

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

Choose the correct answer to complete the sentence. "Centuries ago, man discovered that removing moisture from food helped _______ it."

The number of students attend the class dwindled until only two remained.

The builders of the variety ancient cliff ruins scattered throughout the canyons and mesas of the arid Southwest of the United States are known as the cliff dwellers.

They are going to do the test tomorrow, _    ?

Interest in automatic data Processing has grown rapid since the first large calculators were introduced in 1950.