When a pearl is cut in half and examined under microscope, but its layers can be seen.

Choose the best option:

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

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

Do it right now, ______?

Because the diamond is the hardest naturally occurring substance, it is used in industry for to cut, grinding, and boring other hard materials

In the 1920’s, cinema became an important art form and one of ten largest industry the United States.

The extraordinary beautiful of orchids makes them basis of a multimillion-dollar industry.

I’d rather you ...............  to the English-speaking club with me this Sunday.

Lunar eclipses happen only if the Moon is full, but they do not occur a every full Moon

Find the word which has a different sound in the part underlined.

Some ofthe stiffest competitions the jackals face on plains of Africa comes vultures.

The success of shared holidays depends on .................  you shared it with.

New York City surpassed the order Atlantic seaports in partly because it developed best transportation links with interior of the country.

Because not food is as nutritious for a baby as its mother’s milk, many women are returning to the practice of breast feeding

By September next year I  ........... here for ten years.

Why didn t you give me a call yesterday? We  .................  discuss everything together.

In 1984, the world population rose to over 4.7 billion, up almost 85 million from an estimate made the year ago.

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

About 200 million years before, all the continents were part of vast land mass called Pangaea.

No matter how she tries, she never _____ over her shyness. 

A fragrant plant has tiny sacs that makes and stores the substances that give it pleasant odor.