Duke University in North Carolina has an outstanding collecting documents concerning history

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

– “ It’s high time someone tells James how objectionable he is”.

“I wish you wouldn’t criticize James behind his back all time” 

The rock formations in the Valley of Fire Nevada has been worninto many strange shapes by the action of wind and water.

Each year, people around world spending billions of dollars buying merchandise on the Internet

Society changes, but not change at the same rate or in the same direction.

I found it difficult convincing inspector that I had lost my ticket, but he believed me in the end

Interestingly, the United States both produces or uses more crude oil than other nations.

Everything is alright, ________?

Margaret Mead achieved worlduide famous through studies of child-rearing, personality, and culture.

As a child grows on, its physical health is affected by  many elements in, water and food

As the marathon runner reached the half-way mark, he, being hot and was soaked with perspiration, stopped to rub down with a towel.

Georgia has too many types of soil that virtually any temperate-zone crop can be grown

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

You pay about $50 per person and can having dinner,breakfast there

He gave  ................ his job in order to go back to university.

Deep (cratered, the moon is over 2100 miles in diameter with negligible gravity and atmosphere

She must retyping the report before she hands it in to director of financing

Gunpowder, in some ways the most effective of all explosive materials, were mixture of potassium nitrate, charcoal, and sulfur.

I’ve got my photos drying out on the kitchen floor, so whatever you do, don’t tread on them!

Now I _    all day, so it doesn't matter.