Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: Different kinds of soil conservation methods are used by farmers to protect their land from damage by farming and the forces of nature. One important form of soil conservation is the use of windbreaks. Windbreaks are barriers formed by trees and other plants with many leaves. Farmers plant them in lines around their fields. Windbreaks stop the wind from blowing soil away. They also keep the wind from destroying or damaging crops. They are very important for growing grains, such as wheat. There have been studies done on windbreaks in parts of West Africa, for example. They found that grain harvests can be twenty percent higher in fields protected by windbreaks compared to fields without such protection. However, windbreaks seem to work best when they allow a little wind to pass through. If the wall of trees and plants stops wind completely, then violent air motions will take place close to the ground. These motions will lift soil into the air where it will be blown away. For this reason, a windbreak is best if it has only sixty to eighty percent of the trees and plants needed to make a solid line. There should be at least two lines in each windbreak. One line should be large trees. The second line, right next to it, can be shorter trees and other plants with leaves. Locally grown trees and plants are best for windbreaks. Options: A A windbreak is a concrete wall to prevent the strong winds. B A windbreak is a wood with different kinds of trees. C A windbreak is a wall of trees to hold soil in place. D A windbreak is a wall of wind to fight wind from the opposite way. Answer: C A windbreak is a wall of trees to hold soil in place. Question:

A: What is a windbreak according to the passage?

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: More than half of the parents in the United States are helping, or have helped, support their adult children who have been hit by high unemployment and poor wages , according to a new survey. It showed that present economic conditions are discouraging young adults from leaving home and forcing those who have already gone, so-called boomerang kids, to return. "Parents are continuing their financial involvement longer than we expected," said Ted Beck, president of National Endowment for Financial Education (NEFE). About 60 percent of parents questioned in the survey said they're helping their adult children who are no longer in school financially. Half are providing housing and nearly half are helping with living expenses. For an increasing number of adult children, the situation is bad. Two-thirds of adult children, aged 18 to 39, who are not in school said they faced tougher financial pressures than previous generations, according to the survey. And nearly one-third of parents agreed that it was easier for them to find their financial feet than for their children. Parents are helping their children out of genuine concern because they do not want to see them struggle. But Beck said that parents who make sacrifices to help their adult children should be careful about their own finances. "If you are taking on extra debt or delaying retirement to help your adult child, you could be making a mistake and putting your own financial future in danger," Beck warned. Boomerang children can also cause other problems for their parents. Thirty percent of parents said they had given up privacy since their adult children moved back home, while more than a quarter have taken on added debt, and seven percent have delayed retirement. But the survey also showed 42 percent of adult children living at home are helping with the cooking and cleaning. Options: A about 30% of parents offer their adult children housing B one-third of adult children earn money more easily than their parents C two-thirds of adult children are faced with financial problems in school D about 50% of parents give money to their adult children to cover the daily cost Answer: A about 30% of parents offer their adult children housing Question:
++++++++++++++++++++++++++++++++
The answer is:
According to the survey, we can infer that _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: When my family moved to America from a small village in Guangdong, China, we brought not only our luggage, but also our village rules, customs and culture. One of the rules is that young people should always respect elders. Unluckily, this rule led to my very first embarrassment in the United States. I had a part-time job as a waiter in a Chinese restaurant. One time, when I was serving food to a middle-aged couple, the wife asked me how the food could be served so quickly. I told her that I had made sure they got their food quickly because I always respect the elderly. As soon as I said that, her face showed great displeasure. My manager, who happened to hear what I said, took me aside and gave me a long lecture about how sensitive Americans are and how they dislike the description "old". I then walked back to the table and apologized to the wife. After the couple heard my reason, they understood that the problem was caused by cultural differences, so they laughed and were no longer angry. In my village in China, people are proud of being old. Not so many people live to be seventy or eighty, and people who reach such an age have the most knowledge and experience. Young people always respect older people because they know they can learn from their rich experience. However, in the United States, people think "growing old" is a problem since "old" shows that a person is going to retire or that the body is not working well. Here many people try to keep themselves away from growing old by doing exercises or jogging, and women put on makeup, hoping to look young. When I told the couple in the restaurant that I respect the elderly, they got angry because this caused them to feel they had failed to stay young. I had told them something they didn't want to hear. After that, I changed the way I had been with older people. It is not that I don't respect them any more; I still respect them, but now I don't show my feelings through words. Options: A lost his job in the restaurant B made friends with the couple C no longer respected the elderly D changed his way with older people Answer: D changed his way with older people Question:???
output answer: After this experience, Jack _ .

[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: Scientists have searched for many years for a method to tell whether a volcano explosion will be small or large. Now, four scientists say they have discovered something in lava that will help do this. They did the research on Mount Unzen on the southern Japanese island of Kyushu. Mount Unzen exploded in November, 1990. Since then, more explosions have killed 43 people and destroyed the homes of more than 2,000 others. The volcano is still active today. The scientists say the lava of the volcano contains high level of an element ,which is a sign of the presence of the lava from deep in the earth, not from the surface. They say it shows that the lava coming directly from inside the earth is connected with huge explosions instead of smaller ones. The scientists examined the lava from 18 explosions of Mount Unzen that took place during many thousands of years. They also studied the lava from other volcanoes in the area that are older than Mount Unzen. The lava studied came from both large and small explosions. The scientists found that large explosions contained more of the element than small ones. The scientists say if they had known this two years earlier, they could have warned the people living in the area near Mount Unzen and saved many lives. Options: A It comes from the deepest part of the ocean. B It comes from the earth surface. C Not mentioned in the passage. D It is from deep part in the earth. Answer: D It is from deep part in the earth. Question:
****
[A]:
Where does lava come from?