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: A person who is deaf when he is born is usually dumb as well. There may be nothing wrong with his mouth and tongue, but he cannot speak. This is because he cannot hear people, so he has nothing to imitate . He may try to make sounds himself, but cannot hear his own voice. However, even though he finds it difficult to speak and cannot hear, he can learn to read. Nowadays such persons can also be taught to speak because we have modern methods and equipment, but we did not have these when Helen Keller was born. Even with modern methods and equipment, however, it is not easy for deaf children to learn to speak, though most of them succeed. When a child is deaf and blind as well, it becomes much more difficult, though it is possible. Helen Keller was born in 1880. She became very ill at the age of nineteen months. Medical knowledge was not as great then as it is now. She did not die but lost her sight and hearing. As a result, she became dumb as well. Her parents did their best to teach her, but she couldn't speak by the age of six. Then, in 1887, a teacher, Miss Sullivan, came to live with her. Miss Sullivan herself had been blind. She had been partly cured. Though she could not see very well, she was not blind. Helen was a difficult pupil at first, but in a month Helen had learned how to understand signs and how to make them herself. At last in spite of her great difficulties, Helen learned to read, write and speak, even though she was deaf and blind. She even went to college and had full education. She wrote many books, and though other people have written books about her, her own books are the ones that best explain how it feels to be deaf, dumb and blind. Her best book is The Story of My Life. Perhaps you have read it. Though it was written in 1902, it is still a very interesting book. Even if you have not read it, you may have heard of Helen Keller.
Answer: he cannot hear other people and he has nothing to imitate
Example Output: A person who is deaf at birth is also dumb because _ .

Example Input: Article: Hundreds of years ago, a Roman army came north from England to make war on Scotland. The Scots, a brave people, love their country. They fought hard to drive the enemy out of Scotland. But there were too many of the Romans. It looked as if the Romans would win. One night, the leader of the Scots marched his soldiers to the top of a hill. "We will rest here tonight, my men," he said, "Tomorrow we will fight one more battle. We must win, or we will die." They were all very tired. So they ate their supper quickly and fell asleep. There were four guards on duty, but they were very tired, too, and one by one, they fell asleep. The Romans were not asleep. Quickly they gathered at the foot of the hill. Slowly they went up the hill. Closer they came to the sleeping Scots. They were almost at the top. A few minutes more the war would be over. Suddenly, one of them put his foot on a thistle . He cried out and his sudden cry woke the Scots. In a minute they were on their feet and ready for a battle. The fighting was hard, but it did not last long. The Scots wiped out the Romans and saved Scotland. The thistle is not a beautiful plant. It has sharp needles all over it. Few people liked it. But the people of Scotland liked it so much that they made it their national flower.
Answer: came to the north Scotland from England to make war on Scotland
Example Output: Hundreds of years ago, the Romans _ .

Example Input: Article: The World Bank has looked at the distinguishing features of successful school system. According to the World Bank's education specialist, Harry Patrinos, this include: improving the quality of teachers and making sure that teachers are highly regarded; providing information to make schools accountable and giving autonomy to schools and head teachers. This matters not only for individual pupils but also for the well-being of countries, he says, because improving educational performance has a direct impact on improving economic performance. China's education performance-- at least in cities such as Shanghai and Hong Kong-- seems to be as spectacular as the country's fast growing economy. Certainly both these open and outward-looking cities consider education to be important and are willing to adopt the best educational practices from around the world to ensure success. In Hong Kong, education accounts for more than one-fifth of entire government spending every year. "Shanghai and Hong Kong are small education systems, with a concentration of ideas, manpower and resources for education," says Prof Cheng. Under the banner "First class city, first class education", Shanghai set about systematically re-equipping classroom, upgrading schools and improving the curriculum in the last decade. It got rid of the "key schools" system which concentrated resources only on top students and top schools. Instead staff were trained in more interactive teaching methods and computers were brought in. About 80% of Shanghai school leavers go to university compared to an overall average of 24% in China. Meanwhile, dynamic Hong Kong was forced into educational improvements as its industries moved to cheaper mainland Chinese areas in the 1990s.Its survival as a service and management hub depends on upgrading knowledge and skills. In the last decade Hong Kong has concentrated on closing the gap for all students, says a report by McKinsey management consultants. The report, How the World's Most Improved School Systems Keep Getting Better, rated Hong Kong's education system among the best in the world.
Answer: what has made some education systems successful
Example Output:
The World Bank's survey about education mainly concentrates on _ .