Being the biggest expanse of brackish water in the world, the Baltic Sea is one of special interesting to scientists.

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

Choose the best answer:

How long ago _____?

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

He failed the exam, _______ he had to do the job he didn’t like.

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

Where have you been _________ yesterday?

To raise livestock successfully, farmers must selecting cattle for breeding and apply a dietary regimen

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

They have just visited the town__________ location was little known.

I’ll make some sandwiches before I’ll leave for the office in the morning.

Choose the best answer which has the same meaning to the given one.

The most beautiful girl lives in a city. I like her long hair very much.

Choose the best answer

FTC is a ______ organization. It is set up to help poor children get access to technology free.

Supply the appropriate forms of words in the brackets. 

John considers reading others’ diaries an______________ invasion of privacy. (PERMIT)

Neither of the girls have turned in the term papers to the instructor yet

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

He still doesn’t know _________ his budget when living alone in the city.

Choose the correct option A, B, C, or D to complete each sentence.

I wish I ______all the natural and man-made wonders of Viet Nam.

Choose the letter A, B, C, D to indicate the correct answer to each of the following questions:

If the wall weren’t so high, he ________ it up to take his ball down.

Identify the mistake in each sentence below.

Gilbert Newton Lewis, a (A) chemist, helped to develop (B) the modem electron theory of valence, a theory explains (C) the forces holding atoms together (D) in molecules.

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

His bad exam results made his parents __________.

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

It was too dark to go on, __________ we found somewhere to stay.

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

Usually the climate in mountainous areas becomes much windy at higher altitudes