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

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• So far most a million difference specie of insect have been identified and named.

• Because the tachinid fly is a parasite of harmful insects, much species have been imported nto the United States to combat insect pests

• There was a very interesting news on the adio this morning about earthquake in Italy.

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• In the 1970’s consumer activities succeeded in promoting laws that set safety standards for automobiles, children’s clothing, and widely range household products.

• Rattan, a close relative of bamboo, is often used to make tables, chai, and other furnitures

• Upon reaching the destination, a number of personnel is expected to change reservations and proceed to Hawaii

• The common field mouse is about four inches long and has three – inched tail

• Choose the correct answer to complete the sentence. "The scholarship is renewed every year and may be _____if the students have poor academic records or bad behaviours"

• The early periods of aviation in the United States was marked by exhibition flights made by individual fliers or by teams of performers country fairs

• Venus, the second planet from the Sun, exactly almost same size as the Barth.

• Find out error in each sentence: 

  The better you are at English, the most chance you have to get a job with international  organizations. 

• The Mediterranean, a large sea surrounded by land, is a mile depth the average and more than 2.000 mile

• Psychologists at the University of Kansas has studied the effects of the color of a room people’s behaviors.

• If a glass lizard loses it tails, a new  one grows to replace.

• Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions: 

  Tourists can do and see a lot in Ha Long Bay at a reasonable price.

• The vast majority of the world’s manganese is found ndin either South Africa but also country the former Russian.

• In order no money would be wasted , we had account for every penny we spen

• The sum of all chemical reactions in an organism’s liveluy cells are called its metabolism.

• He scored so good a goal that wild cheer raised from the stands

• Time is of few count in relation to great thoughts that are as vivid today as when they first passed through author’s minds ages ago