Every scientist knows that gravity is the force that maintains the earth and the planets in its orbits around the Sun.

VOCABULARY AND STRUCTURES: Choose the best options 

The main ______ is played by Nicole Kidman. 

Research has proved that a baby can distinguish its mother’s voice the moment he is born.

Someone else put 49,999 dominose in a line and knocking them all down.

About (200 million years before, all the continents were part of one vast land mass called Pangaea.

Choose the underlined part among A,B,C or D that needs correcting:

What does your daughter practise singing all day to?

Hoover Dam in Nevada is a multi purpose structure that provides flood control, hydroelectric powerful, and drinking and irrigation water.

The flag over the White House is risen at dawn every day by a color guard from the United States armed forces.

When you passed the town hall clock, did you notice what time was it?

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

We seldom (eat) ____________ breakfast before 7 o’clock.

Choose the best answer to the following sentences.

A bank has promised a donation of $24 million toward the disaster fund.

Research has proved that a baby can distinguish its mother’s voice the moment he is born.

Water , ice, and snow play a role in affecting an Earth’s rotation

Petrography concerns primarily with the detailed description and classification of rocks, whereas petrology deals primarily with rock formation

The need for a well-rounded education was an idea espoused by the Greeks in time of Socrates .

Choose the best answer from the four options given (A, B, C, or D) to complete each sentence:

Several people were hurt in the accident but only one ________ to hospital.

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

He put a_________ against the tree and climbed up to pick the apples.

Choose the best answer from the four options given (marked A, B, C, or D) to complete each sentence: 

He asked me if I __________ to school by bicycle every day.

Where is the picture _________ was on the wall?

Those of us who have a family history of heart disease should make yearly appointments with their doctors

Patrick was very late getting home last night, and unfortunately, the dog barking woke everyone up