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.

Ex Input:
Article: My first visit to London was one and a half years ago. It was a wonderful trip. I stayed in the city for three weeks, and I had many impressions. I visited all the famous places. I'd like to tell you about some of the places I visited in this beautiful city. First, I went to the Tower of London, and I want to say that it is a very interesting historical place. I found out that a long time ago, it was a prison. Later it became a castle for the royal family. Or maybe it is the reverse; I'm not sure, but later they left this place and lived in Buckingham Palace and Kensington Palace. I also enjoyed visiting the House of Parliament and Westminster Abbey, two very popular places for tourists. They are very old and beautiful. The Abbey is built in a kind of Gothic style; it is fantastic. In London, you can also enjoy nature. There are many parks such as Hyde Park, Green Park, and Holland Park. These parks are wonderful green, quiet places where you can relax and escape the noise of the city. Trafalgar Square is a popular place for students and other young people. You will find lots of pigeons there. If you have time, you can feed them and they will be very happy. You can buy special food for them, but be careful! Tons of birds are going to surround you if you feed them. Another very special place in London that I like is St. Paul's Cathedral which was designed by Sir Christopher Wren. I also was impressed with the museums in London. They're very popular. I found them interesting because you can learn about the history of England. I had a wonderful time in London. I really liked it because it is a city that is rich in history.
Answer: recall his/her first travel to London

Ex Output:
The writer writes this passage to _ .

Ex Input:
Article: Environmental protection is frequently talked about nowadays. The authorities are doing their best to arise the public awareness of the vital importance of the environmental protection. This issue is, indeed, worth following up. Environmental protection is closely related not only to our personal life, but also to the entire human race and the world's further development. For one thing, the environment, in a narrow sense, determines the quality of our individual life. The air we breathe, the water we drink, the food we eat, etc. , all come directly from the environment. If they continue to be contaminated, we may have neither clean water, nor healthy food. For another thing, in a broader sense, the environment plays a decisive role in fate of mankind. As is known to all, the earth, up to now, is human being's only dwelling place. We can expect that some day we will live on another planet, but I doubt that this day will come earlier than the day when the earth becomes a globe of waste, if we keep damaging the environment. Finally, the environment is essential to the further development of the world. Extensive industrialization, which has brought about all the convenience and facilities we enjoy today, has been depending on the comprehensive exploitation of the earth's natural resources found in the environment. If we do not protect the environment properly, further development cannot be guaranteed. In a word, to protect the environment is an urgent task. Nevertheless, environmental protection is indeed a demanding task. Many people are still, either unconscious of the urgency of the task or deliberately damaging the environment for the interests of their own. Hence, we should adopt severe measures to prohibit people from doing more harms to the environment. Meanwhile, we need to make the gravity of the present situation known to all. In other words, punishment and instruction should be equally emphasized. Only in this way can we look forward to a cleaner and greener world.
Answer: stress the importance of protecting environment

Ex Output:
The author's purpose in writing the passage is to _ .

Ex Input:
Article: In our schooldays, everyone has the memories they can cherish and treasure for their whole life. Schooldays are the most joyful and fun filled with many mysteries to solve and many fights to resolve. In my schooldays, I had many friends and some foes. We used to gossip, play and sometimes fight over silly things. I had two best friends. They were very' nice and loyal to me. Every teacher in my school liked us, although we weren't brilliant students. In fact we were average ones but still we respected our elders and loved our youngsters. Since my childhood, I've never been complaining to anyone about anything as I had everything I needed or wanted. I miss my schooldays since they are all about having fun and no competitions. The most exciting part is "the exchange of lunch boxes". Usually my best friends and I liked each other's lunch and soon developed a habit of exchanging lunches. Apart from sharing lunches, we also used to share our silly secrets. We used to play our self-created games and draw photos for fun. We also used to have bets and treats for rewards on childish things but we never played jokes on anyone. My childhood was indeed really amazing and simple. We found fun in small but beautiful things. It was surely surrealistic but also exciting at times. In my schooldays, we sometimes played in the rains, made paper boats, ate ice-creams and enjoyed every drop of water and after getting all bathed up in water, we had hot chocolate drinks. These were some of the memories of my schooldays in my childhood, which I still cherish today. I hope everyone's childhood days are just as carefree and joyous as mine.
Answer: he was never short of anything

Ex Output:
The author never made any complaints because _ .