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.

Article: Do you want to be a successful person? Would you like to know how successful people usually think and what drives them? Here I am going to tell you the key to success that successful people share. First of all, successful people never blame someone or something outside of themselves for their failure to move ahead. They realize that their future lies in their own hands. They understand that they can't control things in life, such as nature, the past and other people. At the same time, they are well aware that they can control their own thoughts and actions. They take responsibility for their life. Perhaps what most separates successful people from others is that they live life "on purpose" --- they are doing what they believe they are put here to do. In their opinion, having a purpose in their life is the most important element that enables them to deal with things around them. They hold the view that when they live their life "on purpose", their main concern is to do the job right. They live what they do. People want to do business with them because of their commitment. To live their life "on purpose", successful people find a cause they believe in and create a business around it. Besides, they never give up easily. Once they have set up goals in their life, they are willing to do whatever it takes to achieve their goals. To achievers always bear in mind what they don't have forever. Rather than see this as negative or depressing, they would use the knowledge to _ themselves on and go after what they want energetically and passionately. So keep in mind what successful people always hold to be true so that you will have a clear idea of what you should do to be successful in life.
Answer: you shouldn't waste time
According to the passage, to be successful, _ .

Article: If you look at the night sky, you'll often see stars moving very quickly. In fact, they move much more quickly than they should according to their size and the laws of physics. Scientists do not completely understand why the speed of these stars is so high. But many believe the reason is that much of the universe is made of something called "dark matter". Groups of stars called galaxies, such as the Milky Way, might even be made up of 90 percent dark matter. How much something weighs depends on where it is. The same object weighs only half as much on Mars as it does on Earth and almost three times as much on Jupiter. So scientists prefer to talk about the mass of something rather than how much it weighs, because mass does not change. They can work out the mass of galaxies by measuring the distance between them and the speed they move at. Recently, Jorge Penarrubia, a senior academic at Edinburgh University, UK, and his team discovered something interesting: The mass of the Milky Way is only half as much as the mass of another nearby galaxy, Andromeda. This seems strange, and dark matter may explain why. Finding out more about dark matter could help us understand how the universe began, but this is not easy. Lots of scientists with different types of expert knowledge are working on the problem. We can't see dark matter, it's very difficult to measure and we can't find out its mass. Unlike stars, dark matter doesn't produce or reflect light. But we can make a good guess that it is there because of the way things move and the way light bends. Experts now think dark matter may be very different from the matter that we find on Earth. There may also be five times as much dark matter in the universe as ordinary matter.
Answer: 7.5 kg; 45 kg
Something that weighs 15kg on Earth weighs about _ on Mars and _ on Jupiter.

Article: No one gets through life without experiencing many disappointments. Strangely, though, most people seem unprepared for disappointment and react to it in negative ways. They feel depressed or try to escape from their troubles instead of using disappointment as an opportunity for growth. One negative reaction to disappointment is depression. A woman trying to win a promotion, for example, works hard for over a year in her department. Helen is so sure she will get the promotion. However, the boss names one of Helen's co-workers for the spot. Deeply depressed, Helen loses her enthusiasm for her job and can barely force herself to show up every day. Helen tells herself that she is a failure and that doing a good job just isn't worth the work. Another negative reaction to disappointment is the desire to escape. Kevin fails to get into the college his brother is attending, the college that was the focus of all his dreams, and decides to escape his disappointment. Why worry about college at all? Instead, he covers up his real feelings by giving up on his school-work and getting completely involved with friends, parties, and "good times". The positive way to react to disappointment is to use it as a chance for growth. This isn't easy, but it's the only useful way to deal with an inevitable part of life. Helen, the woman who was not promoted, could have handled her disappointment by looking at other options. If her boss did not recognize her talent and hard work, perhaps she could transfer to another department. Or she could ask the boss how to improve her performance so that she could prepare for the next promotion. Kevin, the boy who didn't get into the college of his choice, should look into other schools. Going to another college may encourage him to be his own person, step out of his brother's shadow, and realize that being turned down by one college isn't a final judgment on his abilities or potential. Disappointments are unwelcome, but regular visitors to everyone's life. We can feel depressed about them or we can try to escape from them. The best thing, though, is to accept a disappointment and then try to use it somehow: Step over the unwelcome visitor on the doorstep and get on with life.
Answer: offers specific examples of the ways people deal with disappointment
In this passage, the author _ .