He said “Good morning ” in most friendliness way.

Some heating devices chemist energy like that found in wood and coal into heat energy.

The number time he spends gardening is increasing every day.

Indiscriminately dumping waste material and inadequate sewage treatment are two serious causes of environmental pollution

The surface conditions on Mars are the more similar with the Earth’s than those of nay other plane in solar system.

The steam engine is usually thought of as a relative modern invention, but the Greeks built kind of steam engine ancient times

Choose the word or phrase among A, B, Cor D that best fits the blank space :
For most of their time in orbit, astronauts are fully  ……….with repairs and scientific experiments.

The bath overflowed and the water dropped through into the living room.

Chocolate is prepared by a complexity process of cleaning, blending and roasting cocoa beans, which must be ground and mixed sugar.

Choose the word or phrase among A, B, Cor D that best fits the blank space :
There is a wide choice of leisure activities so crew members are …….. to take along their personal choice of entertainment.

None two butterflies have exactly the same design on their wings.

The function of pain is to warn the individual of danger, so he can take action to avoid more serious damage

The number 8.5 is an example of a “mixed number” because it is composing of an integer and fraction

He gave  ................ his job in order to go back to university.

Most modern barns are both insulated. ventilated equipped with electricity

From the airplane, passengers are able to clearly see the outline of the island.

I would have gone with him to Washington except I had had time.

Colleges in the newly formed United States, in recovering from the adverse effects of the American Revolution, inaugurated a broad curriculumresponse of social demands.

Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions: 

Unless you don’t give up smoking you run the risk of becoming quite ill.

My mother doesn’t care how much does washing machine cost because she is going to buy it anyway.

Choose the word or phrase among A, B, Cor D that best fits the blank space :
If boredom arrives, there are plenty of windows from which to admire the ever-changing ……….as the International Space Station orbits the planet every 90 minutes.