Thanks to his obstinacy, he achieved what he wanted. If he were discouraged earlier by this failures, he would not have reached his aims.

After travelling all day, he was completely______.

Woody Guthrie wrote thousands of songs during the lifetime, many of which became classic folk songs.

On farms, when the cattle are too ill, farmers often have to put them ______ . 

In some species of fish, such the three-spined stickleback, the male, not the male, performs the task of taking for the young.

I   ........... up a friendship with John while we were on a business trip together.

Choose the best answer:

Sky-diving is dangerous .................. great fun.

The sun gives everyone light during _____ day.

The firemen had to break _______ the room to rescue the children. 

Long prized for its medicine value, ginseng these days has become the most common of energy-boosting drinks particularly for high- performance athletes.

A book may be studied by students as the ________ of a writing and analysis exercise in the form of a book report.

The vast majority of the world’s manganese is found in either South Africa but also the countries of the former Russian.

The parents realized that the young teacher was .......... great efforts to help their poor kids.

The flag over the White House is risen at dawn every day by a color guard from the United States armed forces.

It was in 1971 that transatlantic supersonic transportation became commercially availabilitt.

I would have gone with him to Washington except I had had no time.

He harbors a deep resentment ___________ his parents for his miserable childhood.

Drug abuse have become one of America’s the most serious social problems.

When radio programs became popular, approximately around 1925, many people stopped attending movies.

A telephone, a satellite TV, a fridge and the other facilitiesare available in our hotel rooms.

Choose the best answer:

I see him ............. my house every day.