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

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• It was Vitus Bering, the Danish sea captain, who discovered Alaska on its voyage to Russia in 1741.

• If children are enjoying themselves and having fun during the activities, this is  an indication that they feel at  ............ with the methods being used.

• I enjoy listening to pop music.

ZUNIA12

• The Carbon atoms of the diamond are so strongly bonded that a diamond can only be scratched with other diamond.

• Some trees such as the Durian need to be burned periodically so that the seeds would open and germinate.

• Choose the underlined part that needs correction.

  Bella had better to change her study habits if she wants to be admitted to a good college.

• Astronomers do not know how many galaxies there are, but it is thought that there is millions or perhaps billions.

• Identify the error in each sentence: 

  The food that my mom is cooking in the kitchen smells deliciously.

• 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:

  She went to live in another state after the break-up of her marriage.

• If the solid level has raised a little higher, the dam would probably have broken.

•  I would love to be able to _____ my children in the country. 

• Professor Moore recommended the book ___________ all his students.

• Engines used in space shuttles are much larger and more strong than the ones used in jet planes.

• With animals both human, chewing helps relieve tension.

•  He said the men took him to a forest and threatened to kill him but he convinced them to let him go in ................  for the car.

• When she retires in April 1989, football champion Christine Evert was the most famous man athlete in the United States.

• The amount of books in the Library of Congress is more than 58 million volumes.

• Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions.

  A. conservative B. equalize C. extraordinary D. astronomer

• He's left his book at home; he's always so..................

• All root vegetables grow underground, and not all vegetables that grow underground are roots.