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.

Q: Article: We always read reports about costs of oil going up and we will think this is our most valuable material. However, water is the most valuable resource . People in the Middle East are more worried about this than oil. Maybe the next war will be about water. In the future, to control the quality and quantity , you will use different water for different usages. The water used to wash your car, water your flowers or wash your clothes doesn't need to be as clean as the water you drink. One in five people live in countries without enough fresh water and in 25 years, the number is believed to be one in every three people. Our world population is increasing. What do you suppose this will suggest for us in the future? Population control? Traditional management of the water industry has been out of date since the 1990s. When technologies develop so rapidly in the world, we have loads of information for technologies in the business world, but in the water industry we don't have any. Britain and France have already taken measures to successfully improve their water industries. All the water services in Britain have been provided by private companies since 1991. Since then, improvement has been made in the rules for their water quality and pricing. What can you do now for the future? Using water more efficiently in your house can make a great difference not only to the world but to your money. Even if you don't have to pay much now, you will when you start to pay big prices for different water usages.
Answer: the world population is growing up.

A: Water shortage is getting more serious because _ .
****
Q: Article: In the past, American families tended to be quite large. Parents raising five or more children were common. Over the years, the size of the family has decreased. One reason for this is an increase in the cost of living. On the average, children attend schools for more years than they used to, making them financially dependent on their families longer. Moreover, children nowadays are better dressed and have more money to spend on entertainment. The parents usually take the responsibility for all the expenses. Meanwhile, families are less close than they used to be. More and more American mothers work away from home. The break up of the family occurs when the parents divorce. A lot of children in the U. S. live part of their young lives with only one parent. Broken families usually result in problems for children and parents alike. Children blame themselves when their parents separate. They grow up feeling unsettled as they are moved back and forth between parents. Usually one parent is responsible for raising the children. These single parents must care for the children's emotional and psychological needs while also supporting them financially. This is very demanding and leaves very little time for the parent's own personal interests. Single parents often marry other single parents. In this type of family, unrelated children are forced to develop brother or sister relationship. The situations of many American families today are not good. However, recent signs indicate that things are getting better. The divorce rate is declining. The rate of childbirth is rising. Perhaps Americans have learned how important families are.
Answer: small

A: In the past, American families tended to be _ .
****
Q: Article: Every fall, many Jewish people around the world celebrate the holiday of Sukkot . They build huts in their backyards, and if it is warm and dry outside, they live in those huts for seven days and nights. Living in a sukkah is meant to remind Jewish people that for 40 years their ancestors lived in huts in the desert. In modern times, it has also become a reminder that many people do not have a place to call home. In 2010, an American reporter named Hoshua Foer was building his own sukkah when he came up with an idea. He wondered what it would be like to have a competition for people around the world to use their imaginations to create modern sukkahs. It would be a design competition. But the sukkah would have to be built according to Jewish laws. These laws are found in an ancient book called Talmud. Some of the laws are surprising! ks5u * It can be built on a boat. * It must have at least two and a half walls. Joshua got in touch with his friend Roger Bennett. They announced the competition in May 2010. More than 600 designers sent plans. Twelve were chosen as finalists . Then those finalists were each given money so they could build their sukkahs in a park in New York City. People building the final sukkahs were from the United States, France, England, Japan, and Germany. More than 17,000 people voted for the winners. At the end of the competition, the sukkahs were sold. The money was then given to a group that helps homeless people.
Answer: imaginations are very important to win the competition

A:
According to Joshua Foer, _ .
****