In 1984, the world population rose to over 4.7 billion, almost 85 million from an estimate made the year ago.

The invention of the Silicon chip in the 1960s revolutionized the computer industry

He said  “Good morning ” in a most friendli way.

Choose the best option:

Scientists ____ on the site found many ancient tools, tombs and pottery, and made some important archaeological discoveries.

Nowhere he could find good place to study, so he returned to his dorm

Your brother used to work as an astronaut, ............................? 

Stars derive their energy from monuclear reactions that take place in their heat interiors

Above 80 percent of the laborers at the construction site are tempor workers.

It is a common knowledge that Dolas intend to retire at the end of the season

I thought this book was rather dull at the first, but I’ve changed mind

Both Mr. and Mrs. Smith are explaining the children the rules the game.

The students in the dormitories were forbidden rom going out after 11:30 p.m., unless they have special passes.

Margaret Mead achieved worlduide famous FAthrough her stud of child-rearing, personality, and culture.

Sue bought a CD player last weekt hen she’s been listening to music ever since then

..........................is one of the most important capitals in the world. 

Cinderella danced .......  than any other girls at the ball.

Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

You have to study hard to keep pace in your classmates

There are many ways to preserve fruit, for example freez, canning and to dry

Choose the letter A, B, C or D to complete the sentences. " You_____ yourself ill if you don't eat properly."

Many automobile factories have found that human operatorsmore effective than automated ones in regard to flexible decision makin