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.

Input: Consider Input: Article: In 1901, H.G. Wells, an English writer, wrote a book describing a trip to the moon. When the explorers landed on the moon, they discovered that the moon was full of underground cities. They expressed their surprise to the "moon people" they met. In turn, the "moon people" expressed their surprise. "Why," they asked, "are you traveling to outer space when you don't even use your inner space?" H.G. Wells could only imagine travel to the moon. In 1969, human beings really did land on the moon. People today know that there are no underground cities on the moon. However, the question that the "moon people" asked is still an interesting one. A growing number of scientists are seriously thinking about it. Underground systems are already in place. Many cities have underground car parks. In some cities, such as Tokyo, Seoul and Montreal, there are large underground shopping areas. The "Chunnel", a tunnel connecting England and France, is now complete. But what about underground cities? Japan's Taisei Corporation is designing a network of underground systems, called "Alice Cities." The designers imagine using surface space for public parks and using underground space for flats, offices, shopping, and so on. A solar dome would cover the whole city. Supporters of underground development say that building down rather than building up is a good way to use the earth's space. The surface, they say, can be used for farms, parks, gardens, and wilderness. H.G. Wells' "moon people" would agree. Would you?
Answer: lived in so many underground cities

Output: The explorers in H. G. Wells' story were surprised to find that the "moon people" _ .

Input: Consider Input: Article: The date was like any other day in his life. After school Michael walked past the shop on the street corner. He stopped to look at the front row of shoes. And he felt sorry for himself. He really wanted to have them for his birthday. He sadly walked away and thought of what to tell his mother. He knew she would give anything he liked if she could. But he also knew very well she had little money. He decided not to go home immediately, as he looked worried and his mother would notice it. So he went to the park where he sat on the grass. Then he saw a boy in a wheelchair. He noticed that the boy moved the wheel with his hands. Michael looked at him carefully and was surprised to see the boy had no feet. He looked down his own feet. "It is much better to be without shoes than without feet." He thought. There was no reason for him to feel so sorry and sad. He went away and smiled, thinking he was more lucky in life.
Answer: didn't want to worry his mother

Output: Michael went into the park because he _ .

Input: Consider Input: Article: When I came home to London at the end of my first term at university in December 1968, I was flat broke, and more broke because it was Christmas, so I went to an employment agency for a job. "Would you like to work for the Beatles? " they asked. "Don't you have anything better?" I asked. Fifteen minutes later I got the job. When I asked why they accepted me when millions would have done the job for free, the answer was "That's just the problem." Yes. I owed the job to the fact that I was not a crazy fan. But of course I was a fan. It was difficult not to be. I worked over the winter holiday in 1968 and also during Easter 1969. I had to take a taxi in the days to deliver papers sealed in envelopes to the Beatles' house. I took the envelopes to the address, handed them over to whoever answered the door and lift. Who would entrust such papers to an unknown student today - the envelopes would be opened and the contents of the papers copied and sold to the Press. It never occurred to me to do that. Much has been lost in 40 years! I am always asked how many autographs I collected, and the answer is none. How uncool would it have been to ask for an autograph? Far better just to hear the Beatles' s greets--"Hi, boy." How's it going?" More than 40 years later, this remains the best job I have ever had. It met my immediate material need and provides a memory that can be my life treasure. For a child of the 60s, this was its peak. If some details of the memory are not so fresh, it's because they weren't important then. At 19, you take the things that happen for granted. At 61, they become gold dust. If I had known that then, I would have kept a diary.
Answer: the poor boy couldn't do heavy physical work
Output: The author was offered the job as a mail boy because_.