Wearable sensors, such as the Fitbit, Nike FuelBand and Jawbone UP, _______ the most important part of the fitness world for the last few years.

Digital camera is a wonderful ___________.

Choose the best answer from A, B, C, or D.

I………not sure about that.

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

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

I would like to know the reason__________ he decided to quit the job.

Choose the best answer:
Air pollution has many effects ..................the environment and living organisms.

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

The film is about a spy. His wife betrays him.

The discover of gold and silver in the rugged mountains of Nevada in 1858 attracted many fortune-seekers to that area.

We can surf the ____ to watch films, or download music.

Select the synonym of the following bold and underlined word in the sentence:  " Ask and answer questions about the uses of modern inventions."

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

In developing countries, 90 percent of people use­­____for cooking and heating.

About 150 years ago, Charles Darwin shocked the world with his the cry that humans were relativity to apes.

The machinery we sell is assembling in this country, but most of the parts come from abroad

Choose the best answer from A, B, C, or D.

At this time tomorrow night I………..on a ship.        

Like the area in and on the Rocky Mountains, the Western Basins and Plateaus region of the United States offers much for the tourists.

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

They have just found the couple and their car__________ were swept away during the heavy storm last week.

Not until recent has interest in synthetic fuels been revived.

Find the ONE among the underlined and marked A, B, C, D in each of the following sentences that needs correcting:

The car who I bought used to be my father’s.

Find the ONE among the underlined and marked A, B, C, D in each of the following sentences that needs correcting:

Do you know the reason when English men travel to the left?

The giant panda eats chiefly mainly bamboo shoots, though it also eats some other plants and occasionally feeds on fish and small rodents.

Runner Wilma Rudolf win three gold medals at the 1960 Olympics, and she set the world record for the 100 – meter dash in 1961.