The Carbon atoms of the diamond are so strongly bonded that a diamond ca be scratched with other diamond.

If I were like you, I’d spend a bit more and buy the hardback version the book.

The _________ of the event wanted to bring the new breath of life to the city. 

It was in 1971 that transatlantic supersonic transportation became commercially availabilitie

“You look nice in that red shirt” “……..............” 

The government’s budget maybe considered balanced when amount of money it spend does not exceed the amount it receives.

I did not realize that I had left my umbrella on the bus when started to rain.

Usually the climate in mountainous areas becomes much wind at higher altitudes.

American pioneers did water systems from logs with hole bored through their center.

In addition to enhanced their reputations through strategic use of philanthropy, companies sponsoring social initiatives to open new markets

Thanks to a considerable number of material data, we know pretty much about ancient Egypt, but few historical records of Babylon availably.

I was such nervous that I did think I would pass the exam.

Although the accurate of the United States census is debated, figures are used to guide countless public funding decide.

Photographs from a satellite are frequently used to generate the information is needed produce a map

Someone who has ever tried to pick up spilled Mercury will agree that his element is hardhandle.

Twenty years ago, David  ......... speak Arabic fluently. Now he's forgotten a lot.

Exercising well is as important to your health as sleep  and eating correctly 

Sheep have been domesticated or over 5,000 years ago .

Find out error in each sentence: The oil price is believing to be rising again.

……………fax transmission is commonly used in most offices.

If the airplane ticket wasn’t expensive, I could fly o Singapore for my holidays.