I earn a good salary _______ working hard. 

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Internet, definitely causes a problem in society, however, it surely provides many benefits as well.

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The author has not rarely written anything that was not a best-seller.

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The discovery of the antibiotic penicillin in 1928 has not produced antibiotics useful for treating of infectious diseases until 1940.

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Running along the 180th meridian, International Date Line is separated one day with another 

He stayed home______the rain. 

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

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When he took the ticket out of from his pocket, hundred dollar bill fell to the floor without the noticing.

Choose the best answer to complete each unfinished sentence, substitutes the underlined part.

In developing countries, there are many children ................. cognitive impairments.

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

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A smile can be observed, described, and reliably identify; it can also be elicited, manipulated under experimental conditions.

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After driving a car for a few miles, John suddenly realized that he has been driving in wrong direction

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The officials object to them wearing long dresses for inaugural dance at the country club.

Choose the correct answer to complete the sentence. " Vu is truly a ______ friend. He will always be with me and never let me down."

Error Identification.

When conflicts happen (A), we sit together and discuss (B). We need understanding (C) each other (D) better.

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He has been hoped for a raise for the last four months, but his boss is reluctant to give one .

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I was such nervous than I didn’t think I would pass the exam

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The winter storm that raced through the area for the last two day moved to the east today.

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Light rays what enter its eye must be focused onto point on the retina in order for clear visual image to form .

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

It is said that he......learning English for nearly one year.