The Carbon atoms of the diamond are so strongly bonded that one diamond can only be scratched with other diamond.

Where ……………. your family live? 

A computer networks usually includes either selected employees of  particular business and people who do not work together but have similar interests

Cotton fiber, like other vegetablfibers, are composed mostly of cellulose

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

The most of the energy used in our homes and factories generated from coal, oil and natural gas.

Deciduous trees are ones that lose its leaves in autumn and grow new ones in the spring.

What time __________ the news on TV? 

Geologists find it useful to identification fossils in rock sample because certain assemblages of species are characteristic specific geologic time periods.

Carrie Chapman Call organized  League of Women Votes after successfully campaign for the constitutional amendment gave women the right to vote.

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

For they, the biggest success was winning the gold prize.

Scientists believe that by altering the genetic composition of plants, it is possible develop specimens that are resisting to disease and have increased food value.

The signing of the peace treaty was an event major importance.

How much times did Rick and Jennifer have to do experiment before they obtained the results they had been expecting ?

Half of the money … to Mr. Lam. 

The Philippines………of more than 7000 islands.

With cable broadband, you can go from one web page another much quickly than you can. With a dial-up modem or DSL, and you can lweb pages more readily.

He has made a lot of mistakes in his writing because his carelessness.

Frank Wright has been acclaimed by colleagues as the greater all modern architects

Since the computer was invented, the work accountants have been simplified.