One of the greatest of mountains climbers, Carl Blaurock was firstto climb all of the mountains higher than 14,000 feet the United States.

So far most a million different species of insects have identified and named.

Because studies have shown that obesity can cause a type of diabetes, doctors usually put his diabetic patients on special diet.

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

Find the word which has a different sound in the part underlined.

It’s been brought to my attention that there has been a number of thefts from the office.

The majestic Rocky Mountains stretch each way from Mexico to the Arctic.

Despite of rain or snow, there are always more than fifty thousand fans at the OSU football games

In the early twentieth century, there was considerable interesting among sociologists in the fact that in the United States family was losing its traditional roles

After writing it, the essay must be duplicated by the the student himself and handed into the department secretary before the end of year

Because not food is as nutritious for a baby as its mother’s milk, many women are returning practice of breast feeding.

I was tired. If I ____________ some food, I _____________ hungry.

The common field is about four inches long and has a three – inched tail

Mutualism is relationship between animal species which in both benefit .

This will have a effect about agriculture

If the airplane ticket wasn’t expensive, I could fly to Singapore for holidays

Some methods to prevent erosion are plowing parallel with the slopes of hills, to plant trees on unproductive land, and rotating crops.

Rudolph Nureyev has become one of the greatest dance ballet world has ever known.

I was such nervous that I didn’t think I would pass exam.

................ advised on what and how to prepare for an interview, he might have got the job.

I've just spent two weeks looking _____an aunt of mine who's been ill.