He always tried to do everything ________ .

Most types of dolphins live at less twenty-five years, and some species may reach 50 years of age.

The Carbon atoms of the diamond are so strongly bonded that a diamond can only be scratched with other diamond.

Most people are interested in ___ about famous celebrities, which is why tabloid magazines still exist.

At the Hermitage, Andrew Jackson’s home in Tennessee, even his glasses have been left exactly where he lay them.

The direct sources of fresh water in lakes are rain, melted snowy and ice

Deep cratering, the sun is over 4200 miles in diameter with negligible gravity and atmosphere.

Identify the error in each sentence: By measuring the color of a star, astronomers can tell how hot is it

Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions:

John stayed at home from work yesterday because he was feeling under the weather.

Choose the correct past forms and past participle forms of the following verbs: go - _______ - _______ 

Many small houses and huts were washed away when the river bursted its banks.

The medical science began with the Greek Hippocrates, who earned for himself the title of father of Medicine.

Identify the error in each sentence: 

This car is too expensive for we to buy at this time, but perhaps we will return later.

Mobility is one of the characteristics often demanded of executives, and they must accustom themselves to move quite regularly.

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

Choose the best answer:

When would you like ........? In a few minutes?

Concorde can fly across the Atlantic without re-fueling and carrying 11 tons of freight.

She doesn't work in a hotel, _______? 

Choose the best answer:

Would you like me ............. down the radio a bit?

An important factor should be considered is Mr. Lopez’s ability to keep the new restaurant going for several months with limited revenue.

It is the writing English that causes difficulties to foreigners.