The children soon forgot that it was them, their parents, who had encouraged them to continue their education.

You must leave at once, ________ you miss the train.

Mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase: 
However, one great British scientist, Michael Faraday, did not make __________of mathematics.

We are not allowed to enter this construction site. A block of flats is being built here and it is dangerous to walk because you may get hurt by a fallen brick or some other objects.

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

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

_______ I sympathize with your point of view, I cannot accept it.

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

Scientists are still uncertain of what the universe originated millions of years ago.

Researchers in economics, psychology, and marketing can help businesses.

I'm very homesick_______ a student abroad.

It was a terrible journey. _______, we got there safely in the end.

Unexplode bombs buried deep in the ground have been found in the construction site opposite of the City Hall.

Southern California, is known for its mild winters, has become the new home for many senior citizens escaping the hard Northern winters.

In safari parks, which wild animals roam freely, visitors are forbidden to get out of their cars

The Homestead Act of 1862 granted 160 acres of land for any settler who would spend five years on the land.

The composer Verdi has written the opera Aida to celebrate the opening of the Suez Canal, but the opera was not performed until 1871

Today successful farmers are experts not only in agriculture, but also in market, finance, and accounting

Some jellyfish make daily journeys from deep water to the surface and back, while others migrate horizontal.

We chose to take a trip to the Far East because it was advertised as adventurous and intrigued

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