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In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.
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Article: The future of pinnipeds looks much brighter today than it once did. At one time, about 100 years ago, it seemed certain that many pinnipeds in the world would be destroyed by human hunters. Today, it appears that most species( ) of pinnipeds are out of danger. Hunting was not controlled during the 18th and 19th centuries, because little was known about the lives of pinnipeds. Whales and pinnipeds were hunted for the oil from their body fat. This oil was used in lamps before electric lights were invented. Millions of seals and other pinnipeds were used to provide oil for the lamps of the world. As a result, the numbers of many pinniped species fell rapidly. Several things happened that helped to save pinnipeds. First, species that were hunted to near extinction were left alone because their numbers were too low and the cost of hunting them went up greatly. At the same time, electric lights were invented and the market for seal oil became smaller. Finally, governments around the world made laws to protect pinnipeds. As a result of all these things, the numbers of most pinniped species have grown in recent years. With some species, such as Northern fur seals, there may be as many animals alive today as there were before all the hunting began. However, oil is still a danger to pinnipeds and all sea animals. But this time it's not because they are hunted for their oil. The oil that puts them in danger is from oil spills in the sea. The oil covers their fur and reduces their body temperatures. Oil also sticks to the foods they eat. This modern danger to pinnipeds and their environment is one we must work to prevent.
Answer: many families were using lamps
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During the 18th and 19th century, _ .

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Article: Any mistake made in the printing of a stamp raises its value to stamp collectors. A mistake on one inexpensive postage stamp has made the stamp worth a million and a half times its original value. The mistake was made more than a hundred years ago in the British colony of Mauritius, a small island in the Indian Ocean. In 1847 an order for stamps was sent to a London printer-Mauritius was to become the fourth country in the world to issue stamps. Before the order was filled and delivered, a ball was planned at Mauritius' Government House, and stamps were needed to send out the invitations. A local printer was instructed to copy the design for the stamps. He accidentally inscribed the words "Post Office" instead of "Post Paid" on the several hundred stamps that he printed. Today there are only twenty-six of these misprinted stamps left fourteen One Penny Orange-Reds and twelve Two Penny Blues. Because of the Two Penny Blue's rareness and age, collectors have paid as much as $16 800 for it.
Answer: was a small island in the Pacific Ocean
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Over a century ago, Mauritius _ .

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Article: Homeschooling is the education of children at home, typically by parents but sometimes by tutors, rather than in public or private school. As a matter of fact, most childhood education occurred within the family or community. Homeschooling is a legal choice for parents in developed countries to provide their children with a learning environment at home. Parents see many reasons for homeschool, including better test results, improved instruction, to help the public system with fewer kids, poor public school environment, religious reasons, improved character development, the expense of private education, and objection to what is taught locally in public school. Homeschooling can also be a choice for families living in remote locations, living abroad, and to allow for more traveling. Also many young athletes and actors are taught at home, where a coach or tutor is with the child for many years and then knows the child very well. In some places, an approved curriculum is required if children are to be home-schooled. In some cases a liberal arts education is provided.
Answer: parents or tutors
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Home-schooled children are usually taught by _ .