Protecting Florida’s coral reefs is difficult because of the corals are very fragile even the touch of a diver’s hand can kill it .

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• In pools, goldfish are not just ornamental; since they feed on mosquito larva, they are also benefitcal.

• The patient who was not supposed to be released until the end of the week was told to dress in clothes and report to the nurse station.

• Even the smallest pulley can be done stronger by adding wheels to system to create more leverage 

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• The flight was ________ for over an hour because of the weather. 

• Visitors may realize that even though can’t make their homes in Da Lat City, they can take away (with them memor of their beauty .

• Ancient people made a clay pottery because they needed it for their survive

• Electric wires carry current for lighting and outlets designing household appliances.

• A dancing is the oldest and liveliest of the arts.

• In 1950 , it was naively predicted that eight or ten computer would be sufficient to handle of the scientific and business needs the United Stateely

• As a child grows on, its physical health is affected by many elements the air, water and food.

• Several people have apparent tried to change the man’s mind, he refuses to listen .

• Modern people have______ education than their ancients. 

• It is necessary that the director will sign all the copies, not just thtop one .

• Many animal species are totally colors blind, but the condition is very rare humans.

• The Humber River and its valley form a major salmon-fishing, lumber, hunting , and farmer region in western foundland, Canada.

• While the sun is the major source ultraviolet rays, it is not the source only.

• Few people realize that the musician f the national anthem the United States originally belonged to the British drink song.

• There always is one wisely woman who is both feared and respected by people.

• One reason birds have been so successful is because of their able to esca from danger quickly.

• I’m just going to shops ; if anyone rings, tell them I will be back for few minutes.