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.

Example Input: Article: Canada is a the second largest country in the world. But it has a very small population. There are only about 29 million people there. Most Canadians are of British or French origin, and French is an official language of Canada as well as English. About 45% of the people are of British origin, that is, they or their parents or grandparents, etc. , come from Britain. Nearly 30% are of French origin. Most of the French-Canadians live in the province of Quebec . Over the years, people have come to live in Canada from many countries in the world. They are from most European countries and also from China, besides other Asian countries. However, Canada was not an empty country when the Europeans began to arrive. Canadian Indians lived along the coast, by the rivers and lakes and in forests. Today there are only about 350,000 Indians in the whole country, with their own languages. In the far north live the Inuit. There are only 27,000 Canadian-Inuit. Their life is hard in such a difficult climate.
Answer: 8,700,000 French-Canadians
Example Output: About _ live in Quebec.

Example Input: Article: Few, if any, instruments shape national culture more powerfully than the materials used in schools. Textbooks are not only among the first books most people meet; in many places they are, along with religious texts, almost the only books they have. A study in South Africa showed that fewer than half of pupils had access to more than ten books at home. In 2010 a study by Egypt's government found that, apart from school textbooks, 88% of Egyptian households read no books. The degree to which a government keeps control of the textbooks used in classrooms is a good guide to its commitment to ideological control. Where that desire is strong, governments are likely to produce the textbooks themselves or define carefully what goes into them. America's State Department employs people to keep an eye on other countries' textbooks, in an effort to understand better how their people think and what their governments want them to think. Other countries probably do the same. Textbooks have long been a source of worry. After the attacks on America on September 11th 2001, some in both America and Saudi Arabia, including officials, supposed that Saudi Arabia's curriculum of intolerance was responsible, at least in part, for the emergence of al-Qaeda . Sometimes the requirements of the state are more clearly seen in what textbooks leave out. The world has long criticized Japan for the way its textbooks whitewash the country's history, in particular dressing up Japanese war crimes. The "New History Textbook", for example, which was submitted for government approval in 2000, played down Japan's aggression in the Sino-Japanese war of 1894-95 and the occupation of China in the 1930s and 1940s, and avoided mention of the use of sex slaves by its armies or the rape of Nanjing. In America most of the disputes about textbooks are home-grown. Liberals worry that their children are being taught a nationalistic version of history that emphasizes the wonders of industrialization and plays down slavery and the killing of Indian tribes. By contrast, Conservatives complain about inadequate education of love for their country and too much secularism . In 2010 the Texas board of education managed to remove Thomas Jefferson, author of the Declaration of Independence, from the state's list of important revolutionary figures, apparently because of Jefferson's insistence on the separation of church and state. He was, however, swiftly restored. As long as textbooks are issued or approved by the state, they will remain a political issue. But as access to other textbooks is enjoyed more widely, some of the dominance they now enjoy will weaken.
Answer: to inform the readers of present practices of textbooks
Example Output: The author's purpose of writing this passage is_.

Example Input: Article: A rainfores is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below 16degC.Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the forest cover, these areas would reflect more heat into the atmosphere,warming the rest of the world .Losing the rainforests may also influence wind and rainfall patterns, potentially causing certain natural disasters all over the world. In the past hundred years, humans have begun destroying rainforests in search of three major resources : land for crops, wood for paper and other products, land for raising farm animals. This action affects the environment as a whole. For example,a lot of carbon dioxide in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit . There are two main reasons for _ . Firstly, when people cut down trees, generally they can only use the land for a year or two. Secondly, cutting large sections of rainforests may provide a good supply of wood right now, but in the long run it actually reduces the world' s wood supply. Rainforests are often called the world's drug store. More than 25% of the medicines we use today come from plants in rainforests. However, fewer than 1% of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the world's shrinking rainforests.
Answer: reduce the effect of heat from the sun on the earth
Example Output:
..Rainforests can help to adjust the climate because they _ .