By studying the fossils of pollen, which extremely resistant decay, researchers can gain useful information about the vegeta of the past.

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

Often a headache is caused by the contraction of one of muscle group that cover the skull, thus causing spasm pain

Not until recent has interest in synthetic fuels been revived.

Find out error in each sentence: The more we work together, the best we understand each other.

This shopping center gets ………………… with shoppers at the weekend. 

Salt was too scarce and precious that it was used as money.

It is the writin English that causes difficulties to foreigner

The first vaccine ever developed was used to combat and fight a smallpox, disease resulting from infection by a virus.

The word(s) CLOSEST in meaning to the following word(s). "against the law"

The skin receives nearly the third of blood pumped out by the heart.

There exists more than 2,600 different varieties of palm trees, with varying owers, leaves, and fruits.

One reason birds have been so successful is because of their able to esca from danger quickly.

Many roads and railroads were built in the 1880s because of the industrial cities needed a network to lin them with sources of supies

The National Basketball Association will not let any athlete to continue playing league unless he submits volunteer to treatment for drug addic.

If one has a special medical condition such as diabetes, epilepsy, or allergy, it advisable that they carry some kind of identification in order to avoid being given improper medication in emergency.

John announced that he could not longer tolerate the conditions of  contract under which he was working

My father gave up smoking two years ago.

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

Find out error in each sentence: It has been long time since we walked with John, isn't it? 

The workers are building a new bridge which is 150 meters in high.