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: City officials in South Jakarta must now cycle when performing their duties.in a move to help _ pollution and global warming."They can own a car and drive to work,but they must cycle when traveling to do their work",South Jakarta city spokesman Ahmad Sotar said,"This is compulsory.Cycling will not only reduce pollution and global warming,but also promote good health."He added,"The official can also get to know their residents better since now they call cycle through the narrow alleyways to reach their home.They can't do so if they drive". South Jakarta, the second--largest of five cities making up greater Jakarta, covers an area of 145 square kilometers and has 2.5 million residents.Over 200 officials in 10 sub.districts and 65 villages have been told about the new rule.Supporting the move,Meruyuny Village chief Selamat Aryadi said cycling would keep officials fit."I don't mind buying a bike.But there must be some exceptions. What will happen if there is a big fire or landslide which I need to attend urgently? I may be late for everything,"he said with a quiet laugh."I think if it,s raining heavily it makes more sense for me to drive.I just hope 1 won't get caught,"he added. Sotar said the officials do not have to cycle to attend to emergency calls."But it is no excuse to say they are too old and sick to cycle.That means they are also too old and sick to perform their duties so they should be replaced,"he said:"We will ask the residents to be our eyes and ears and tell us if the officials cycle or drive."Sotar said.
Answer: the rule should be followed flexibly

Answer: we can learn from what Selamat Aryadi said that_.

Question: Article: It was a very foggy day in London. The fog was so thick that it was impossible to see more than a foot or so. Buses, cars and taxis were not able to run and were standing by the side of the road. People were trying to find their way about on foot but were losing their way in the fog. Mr. Smith had a very important meeting at the House of Commons and had to get there but no one could take him. He tried to walk there but found he was quite lost. Suddenly he bumped into a stranger. The stranger asked if he could help him. Mr. Smith said he wanted to get to the Houses of Parliament. The stranger told him he would take him there. Mr. Smith thanked him and they started to walk there. The fog was getting thicker every minute but the stranger had no difficulty in finding the way. He went along one street, turned down another, crossed a square and at last after about half an hour's walk they arrived at the Houses of Parliament. Mr. Smith couldn't understand how the stranger found his way. "It is wonderful," he said. "How do you find the way in the fog?" "It is no trouble at all to me," said the stranger, "I am blind."
Answer: meet by chance

Answer: According to the passage, we can infer that "bump into" means _ .

Question: Article: Agricultural experts met in Ethiopia last week to discuss ways to help sub-Saharan Africa become a major producer of wheat. The area traditionally produced little wheat, while North Africa was the grain basket. Wheat production fell sharply in sub-Saharan countries during the 1980s. In the 1960s, attempts were made to grow wheat in sub-Saharan Africa, including South Africa and Zimbabwe. But those countries found it was less costly to import wheat from Europe and the United States. Another problem is that Africa's wheat farms were often far from population centers. There also were transportation issues. And some lowlands were not a good place to grow wheat. Hans Joachim Braun,one of the experts, says now is a good time to increase wheat production. In the last four years we have seen three major price hikes, where the wheat price and other staple process exploded. And that puts a big, big bill on countries which are depending on wheat imports, and Africa is the biggest wheat importer. He also says demand for wheat in sub-Saharan Africa is growing faster than for any other crop. With higher income people would like to have more diversified food. But that is possible not the most important one. The most important one is that there is a tremendous migration of in particular male labor to the cities. And wheat products are convenient food because you can easily buy it. It's easy to process and you also can store it for a few days, which is different from some of the maize and rice products. There are three possible challenges for growing more wheat in Africa: climate change, disease and pests, like insects. Mr. Braun says rising temperatures should not have a major effect on wheat. In fact, he says, it could help wheat grow in areas with high rainfall totals. As for fighting disease and pests, experts suggest growing more resistant crops. In addition, railroads and roads would have to be improved so large amounts of wheat could be moved to large markets.
Answer: sub-Saharan countries need to increase wheat production badly

Answer:
Wheat price exploding indicates _ .