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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Question: Article: Bears and humans often meet in National Parks. Although campers and hikers are warned not to feed the bears, many people ignore these warnings and feed the beasts anyway. When bears are used to people's food, problems soon arise. Bears like to eat a large variety of things, both meat and vegetable. Without human assistance, bears live nicely on roots, twigs, leaves of trees, insects and small animals. With people around, the bears' tastes quickly expand to include sandwiches, hot dogs, hamburgers, and anything else they can temp humans into giving up. Bears often develop clever strategies for getting people to let go their food supplies. More often than not, an unsuspecting hiker has taken off his or her pack for a rest only to have a bear charge out of the woods, grab the pack and quickly disappear into the underbrush with it. Hanging the pack on a tree branch won't help. Bears have been known to climb up, jump off, and catch the pack on the way down. One mother bear stretched up with her baby on her shoulders to reach a pack stored on a pole. Many bears threaten people into giving up their supplies. Although a bear is unlikely to attack a person and would probably run away if screamed at, few people are willing to do so. Most people drop the pack and run the other way. This, of course, delights the bear. In some places, the Park Service installed some metal barrels with lids to help campers keep their supplies safe from bears. Although the bears were unable to open these containers, the effort was less than successful. Most campers, unable to tell the metal drums from rubbish cans, never used them for the intended purpose.
Answer: can cause problems

Answer: Feeding bears on people's food_.

Question: Article: I told my friend Graham, "I often walk two miles from my house to the town centre. Unfortunately, there is a big hill on the way." He replied, "You should say 'fortunately'." He explained that I should be glad for the extra exercise that the hill gave. I thought he was right. My attitude to the hill has now changed. As I _ the foot of the hill and prepare to climb, I tell myself that this hill will help me lose weight and get fit. This hill is my friend. I have a smile of satisfaction as I reach the top of the hill. Problems are to be faced. We cannot achieve anything with an easy life. Helen Keller once wrote that "Character cannot be developed in ease and quiet. Only through experiences of trial and suffering can the soul be strengthened ..." Our attitude towards difficulties is of importance in life. From time to time, we all face problems, accidents and difficulties. We cannot choose the situation but we can choose our attitude toward the situation. How can you change your attitude towards difficulties? Try these steps:1. Face the problem. Do not avoid it. 2. Take a positive attitude. 3. Imagine how you will feel when you solve the problem. 4. Develop an action plan for how to deal with it. 5. Smile. Many great people like Helen Keller, took these steps to deal with their problems. They chose their attitude. They chose to be positive. They accepted the challenge. They won.
Answer: Graham often climbs hills to exercise

Answer: We can infer from the passage that _ .

Question: Article: 108 cities in China took part in World Car Free Day on Saturday to promote environmentally-friendly transport and ease increasingly grid-locked city streets.It's a highlight of a nationwide urban public transport week.People were urged to take public transport,ride bikes or walk. To help out,more than 200 new buses took to the streets.And the Beijing Subway laid on 10 more trains for rush hour. A Beijing resident said, "Today is Car Free Day,and I do find the traffic much better and the bus can go much faster." Another resident said,"I spent only half an hour to go to work.It took me twice as long before. And I can find seat on the bus today." But in some areas not signed up for traffic control,endless lines of cars can still be seen. Some people say they just can't do without their cars. Another Beijing resident said,"Some people are willing to give up driving,but on certain days when I have to take my child to school or weekend classes,the public transport is so bad that I can't do it without a car." But the concept of"green"traffic is catching on .People say they believe it's the first and honest step in facing the serious traffic and environmental problems. A driver said,"The Car Free Day has a very important symbolic meaning.It does not mean that we must give up cars.It is to promote a concept,to encourage more people to contribute to the protection of the environment." The Ministry of Construction calculates"Car Free Day"will cut 3000 tons of emissions and save 33 million liters of gasoline.And it's planning more frequent activities to raise public consciousness of energy conservation and environmental protection.
Answer: Car Free Day pushes"green"transport

Answer:
The best title of the passage is possibly"_".