In the United States, leading butter-producing states which are Wisconsin, California, and Minnesota.

Although ferns lack flowers, they do have leaves, stems, and root.

While the sun is the major source of ultraviolet rays, it is not source only

A pair of jeans _______ in the washing machine this morning.

Instead of staying around the house all day, you should be out there looking ............... a job.

For many years, people have wondered that life exit elsewhere in universe.

A flammable liquid it was used to ignite fire that burned part of the blighted Nairobi Shopping Centre.

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

As the plane went more faster the runway, David began to sweat nervously.

The town was a four-days journey from our hotel, so we took the train instead of the bus

The discovery of the antibiotic penicillin in 1928 has not produced antibiotics useful for treatment of infectious diseases until 1940.

Some psychologist believe those who are encouraged to be independent, responsible, and competent in childhood are likely more than others become motivated to achieve.

I _____ the film last night because I _____ it several times before.

Do you know the reason ……. humans are interested in Mars and other planets in thesolar system?

Choose the correct verb form:

____ 60,000 people filled the stadium.

He has less friends in his class now than he had last year

Frank Lloyd Wright has been acclaimed  by colleagues as the greater of modern architects

The builders of variety ancient cliff ruins scattered throughout canyons and mesas of the arid Southwest of the United States are known as the cliff dwellers.

Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions: 

Unless you don’t give up smoking you run the risk of becoming quite ill.

As the marathon runner reached the half-way mark, he, being hot and was soaked with perspiration, stopped to rub down with a towel.

From the airplane, passengers are able to clearly see the outline of the island.