The geology professor showed us sample about volcano rock which dated back  seven hundred years.

Although there are new drugs the market, deaths from malaria are being increasing in some parts the world

Gold, silver, and copper coins are often alloyed whit harder metals to make them hard as enough withstand wear

I would like to send these letters …………………..air mail.

Most modern barns are both insulated, ventila and equipped with electricity 

Some conifers, that are tree that have cones, are able thrive on poor, thin soil.

The novel and the short story are the literary forms most commonly called “fiction”, but contemporary narrative poetry and dram were forms of fiction.

His father plays an important part ...................educating him. 

A dark nebula consists of a cloud of interstellar dust enough dense to obscure the star beyond it.

Tom didn’t believe in us, and it took long time to convince him.

Choose the correct answer to complete. "You should give up ____ your sister"

Before she moved here, Arlene had been president of organization since four years.

All the schools throughout of the country underwent the educational reformat.

The strength , size, and surefootedness of the Hama make its as excellentcy beast of burden in mountainous regions today as it was in the past

The planet Mercury rotates slow than other planet except Venus.

All nations may have to make fundamental changes in their economic, political, and the technological institutions if they are to prese environmen

Each chemical element is characterized to number of proton that an atom of that element contains, called its  atomic number

Forgetting something usually mean an inability to retri the material that is still stored somewhere in the memory.

Those of us who have a family history of heart disease should make yearl appointments with their doctors

People who exercise regularly are less likely to develop heart disease than is who not keep fit.

Some of plantsp in this store require very little care, but this one needs much sunlight than those.