A dark nebula consists of a cloud of interstellar dust enough dense to obscure the star beyond it.

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• In addition to enhanced their reputations through strategic use of philanthropy, companies sponsoring social initiatives to open new markets

• Most types of dolphins live at less twenty-five years, and some species reach 50 years of age.

• Incriminately dumping of waste materi and inadequate ewage treatment are two serious causes of environmental pollution.

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

• As (pure white sugar, Dextrose used (mainly in candy, baked goods, and canned goods.

• The giant panda eats chiefly mainly bamboo shoots, though it also eats some other plants and occasionally feeds on and small rodents.

• Mary found it hard to concentrate on her work because the noisy .

• No sooner had the secretary hang up than the phone rang again.

• Janet is finally used to cook on an electric stove after having gas one for so long.

• To the men who worked so hard on the project, news was profound disappointing.

• Psychological studies show that many students feeling terrible about the results f tests on which they have actually performed well.

• Johnny used to be one of the most __________ athletes in my country. 

• When radio programs became popular, approximately around 1925, people stopped attending movies.

• Lunar eclipses happen only if the Moon is full, but they do not occur at an every ull Moon.

• All of the mammals, dolphins are undoubted among the friendl to human.

• Nomadic hunter and gatherer societies have access to only a limited amount of food in an area and moved on when they have exhausted each localy.

• Do you think that the humans will ever able to live in other planets?

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

• Linda being chosen as the most outstanding student her campus made her parents ver happy.

• Before television became so popular , Americans used to entertain each other the evening by playing games, saying stori, and singing songs