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

Choose the best answer:
I don't believe what he has just said. It is.................

He was so carelful that he left the work half doing and went to the cinema.

 They _______ been learning English for two years.

I shouldn't _________ so much coffee last night. I was wide awake till four in the morning.

I work in a large office with about thirty other people, most of whom I know quite well enough.

She couldn't resist _______ at him in those clothes

Electronics Superstore has announced that it will have closed early for the upcoming holiday next week.

“How does the human brain work?” remains one of the most profound questions confront modern Science.

Tucked away in the mountains of Bolivia and Peru, Lake Titicaca are the lowest navigable lake in the world.

My grandfather ________ away last month. He was 90 years old.

Most boys like playing basket ball, baseball or ______ football. 

Identify the error in each sentence: 

The effects of cigarette smoking has been proven to be extremely harmful.

The amount of books in the Library of Congress is more than 58 million volumes.

Has it been decided who is going to ..........  the orchestra yet?

Eight decibel, which is a unit of relative loud, is the smallest amount of change detected by the human ear.

In the sixteenth century, Francois Vieta, a French mathematician, used the vowels “a”, “b”, “i”, “o”, “u” to represent a unknown number.

Choose the best answer:

She doesn’t like going ............... in the sea in summer.

Language could ......... more quickly if there were more language exchange programs.

Allen’s not having finished his thesis did not discourage him from applying for other degree program.

Marta being chosen as the most outstanding student of her campus made her parents very happy.