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: Who Owns the Moon? Within the next ten years, the U. S., China, Israel, and a crowd of private companies plan to set up camp on the moon. So if and when they plant a flag, does _ give them property rights? A NASA working group hosted a discussion this week to ask: Who owns the moon? The answer, of course, is no use. The Outer Space Treaty, the international signed by more than 100 countries, states that the moon and other celestial bodies are the province of all mankind. No doubt that would annoy all of the people throughout the ages, like monks from the Middle Ages, who have tried to claim the moon was theirs. But ownership is different from property rights. People who rent apartments, for example, don't own where they live, but they still hold rights. So with all of the upcoming missions to visit the moon and beyond, space industry thought leaders are seriously asking themselves how to deal with a potential land rush. " This is a very relevant discussion right now. We've got this wave of new lunar missions from around the world," said William Marshall, a scientist in the small-spacecraft office at NASA, but who spoke this week at an event hosted by NASA's Co Lab, a collaborative public-private working group. He was speaking from his personal interest and not on behalf of the agency. To be sure, the United States aims to send astronauts back to the moon by as early as 2015, in a mission that would include a long-term settlement. China and Israel, among others, are also working on lunar projects. And for the first time, several private groups are building spacecraft to land on the moon in an attempt to win millions of dollars in the Google Lunar X Prize. Some participants say that they plan to gain some property rights in the mission.
Answer: no one can answer the question " Who owns the moon?"

A: In the passage the writer seems to be worrying that _ .
****
Q: Article: C.O.P.D blocks air flow through the lungs. It makes breathing difficult. The leading cause of C.O.P.D. is cigarette smoking. Experts at the National Institutes of Health in the United States say there is no cure to the damage to the lungs. Dawn Demeo is an assistant professor at Harvard Medical School in Boston, Massachusetts. She said, "By 2020, C.O.P.D. may be the third leading cause of death across the world." C.O.P.D. is a new name for emphysema and chronic bronchitis . These are the two most common forms of the disease. Many people with C.O.P.D. have both of them. And Doctor Demeo says more women than men now die from the disease. She is the lead author of a study by a team from Harvard's Brigham and Women's Hospital and the University of Bergen in Norway. The new study adds to findings that women may be more at risk than men from the damaging effects of smoking. The team examined results from a Norwegian study of 954 people with C.O.P.D. Inga-Cecilie Soerheim co-wrote the team's findings. Doctor Soerheim says they show that women suffered the same level of C.O.P.D.as men. But the female smokers were younger and had smoked a lot less. The team also looked at two groups among the people in the study. These were people under the age of 60 and those who had smoked for less than 20 years. In both cases, women had more serious C.O.P.D. and a greater loss of lung function than men.
Answer: women are more likely to suffer from the damaging effects of smoking than men.

A: It can be known from the study that _ .
****
Q: Article: Have you ever walked to the shops, only to find when you get there that you've completely forgotten what you go for? Or have you struggled to remember the name of an old friend? For years, we've accepted that a forgetful brain is as much a part of aging as wrinkles and grey hair. But now a new book suggests we've got _ all wrong. According to The Secret Life Of The Grown-up Brain, by science writer, Barbara Strauch, our brains actually get better with age. In fact, she argues many new studies have found that the brain hits its peak between our 40s and 60s --much later than previously thought. Furthermore, not losing many brain cells as we age, we preserve them, and even produce new ones well into middle age. For years it's been accepted that the brain, much like the body, got worse with age. But the longest, largest study into what happens to people as they age suggests otherwise. This continuing research has followed 6,000 people since 1956, testing them every seven years. It has found that, on average, they performed better in cognitive tests in their late 40s and 50s than they had in their 20s. Specifically, older people did better in tests of vocabulary, spatial orientation skills, verbal memory (how many words you can remember) and problem solving. Where they were weaker was in numeracy (how quickly one can multiply, add, subtract and divide) and the speed at which they could move. However, with harder tasks, such as problem-solving and language, we are at our best at middle age and beyond. In short, researchers are going to come up with scientific evidence that we do get wiser with age.
Answer: our brains are wisest between our 40s and 60s.

A:
Science writer, Barbara Strauch, believes that _ .
****