input: Please answer the following: Write a multi-choice question for the following article, with the given choices and answer: Article: According to a report , more than a million workers will fail to take their full annul leave this year in UK. That's to say, totally, those workers will give up 6.2 million days of vacation, with an average of five days for each worker. For their employers, they feel happy because that is equal to a potential $500 million of 'free' work, which, according to an economist will boost the output of the economy by about two percent. The report also showed that the main reasons employees give up their remaining annul leave are due to pressures at work and their failing to appreciate that taking a break could make them more productive and, in turn, boost the economy in the long term. The research, done by price comparison website Travel Supermarket, found that more than one in four of those who will give up their remaining holidays (28 percent) will do so due to pressures at work. Bob Atkinson, travel expert for Travel Supermarket said: "As the economy is not so satisfying, it's no surprise that people are cautious to take all their leave, especially if they feel stressed and uncertainty at work." Nine percent of the 2,020 people surveyed also said they would feel guilty about taking the leave because their work would have to be taken care of by their colleagues. A further three percent said they would be concerned about how taking time off would look to their employer, while the same percentage said they did not want to miss anything interesting or beneficial at work in the time they would be away. Vicky Redwood, chief UK economist at Capital Economics, said: "Suppose that there are about 250 working days in a year, getting an extra five 'free' days of work from their employees could in theory boost the output of the economy by about two percent. On the other hand, if workers are less productive as a result of not getting enough breaks from work, taking all the annual leave, in fact, will perhaps increase the economy." Options: A They have a lot of pressures at work. B They don't realize that they will be more productive after taking a break. C They are busy and have no time because they have a lot of work to do. D They don't think it proper to have their work taken care of by their colleagues. Answer: C They are busy and have no time because they have a lot of work to do. Question:
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output: Which of the following is NOT a reason why employees don't take all their holiday leave?

Please answer this: Write a multi-choice question for the following article, with the given choices and answer: Article: Today, many people use plants from other places to design their yards. Well, do they have any influence on animals living nearby? As we know, plants supply food for things like insects and plant-eating animals. In turn, birds and meat-eating animals feed on these insects and plant-eating animals. It is easy to see how important plants are. Although foreign plants may look beautiful, they can cause problems when there are too many of them. I live in Virginia, USA, and sometimes see a plant--commonly known as Kudzu--that seems to cover everything in the area, even climbing over whole trees and houses. Kudzu is an unbelievable plant since it grows very fast. It was first brought to the United States from south-east Asia around the 1870's as a crop that farmers could grow. However, Kudzu quickly came to be considered harmful throughout the southern United States. Since Kudzu grows fast in many different environments, it can completely cover areas of land quickly. The plant is also not eaten by any insects or birds in the United States so it can grow unchecked. Kudzu can cover trees, bushes, and even houses. It costs the United States 500 million dollars a year to just keep Kudzu from growing too fast. The plant is a perfect example of what scientists call an invasive species, which grows more quickly than other native plants. All foreign plants have the possibility to spread quickly. Not only are they costly, but planting them in gardens actually takes away food from insects. If everyone filled their garden with plants native to where they live, many lovely butterflies and other native creatures would be attracted to their backyards! So, take a look out of your window -- how does your garden grow? Options: A It served as food at first in America. B It came to America in the early 19th century. C It grows fast in Asia, but slowly in America. D It is often eaten by insects or birds in America. Answer: A It served as food at first in America. Question:
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Answer: Which of the following is TRUE of Kudzu?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: When couples get married, they usually plan to have children. Sometimes, however, a couple can not have a child of their own. In this case, they may decide to adopt a child. In fact, adoption is very common today. There are about 60 thousand adoptions each year in the United States alone. Some people prefer to adopt _ , others adopt older children, some couples adopt children from their own countries, and others adopt children from foreign countries. In any case, they all adopt children for the same reason ---- they care about children and want to give their adopted child a happy life. Most adopted children know that they are adopted. Psychologists and child-care experts generally think this is a good idea. However, many adopted children or adoptees have very little information about their biological parents. As a matter of fact, it is often very difficult for adoptees to find out about their birth parents because the birth records of most adoptees are usually sealed. The information is secret so no one can see it. Naturally, adopted children have different feelings about their birth parents. Many adoptees want to search for them, but others do not. The decision to search for birth parents is a difficult one to make. Most adoptees have mixed feelings about finding their biological parents. Even though adoptees do not know about their natural parents, they do know that their adopted parents want them, love them and will care for them. Options: A They are usually adopted from distant places. B Their birth parents often try to conceal their birth information. C Their birth information is usually kept secret. D Their adoptive parents don't want them to know their birth parents. Answer: C Their birth information is usually kept secret. Question:???
output answer:
Why is it difficult for adoptees to find out about their birth parents?