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: 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

A: Something that weighs 15kg on Earth weighs about _ on Mars and _ on Jupiter.
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Q: Article: I was born and raised in Minnesota, the USA,but as an adult I have mostly lived in Europe and Africa. I teach cross-cultural management at the International Business School near Paris. For the last 15 years, I've studied how people in different parts of the world build trust,communicate, and make decisions especially in the workplace. While traveling in Tokyo recently with Japanese colleague,I gave a short talk to a group of 20 managers. At the end, I asked whether there were any questions or comments.No hands went up,so I went to sit down.My colleague whispered to me,"I think there actually were some comments, Erin.Do you mind if I try?" I agreed, but I guessed it a waste of breath. He asked the group again, "Any comments or questions?" Still, no one raised a hand, but this time he looked very carefully at each person in the silent audience. Gesturing to one of them, he said, "Do you have something to add?" To my amazement,she responded "Yes, thank you." and asked me a very interesting question. My colleague repeated this several times,looking directly at the audience and asking for more questions or comments. After the session, I asked my colleague, "how do you know that those people had questions?" He hesitated, not sure how to explain it, and then said, "It has to do with how bright their eyes are." He continued, "In Japan, we don't make as much direct eye contact as you do in the West. So when you asked if there were any comments, most people were not looking directly at you. But a few people in the group were looking right at you, and their eyes were bright. That indicates that they would be happy to have you call on them." I thought to myself I would never have learned from my upbringing in Minnesota. Since then, I try to focus on understanding behavior in other cultures I encounter, and keep finding the bright eyes in the room.
Answer: thought his colleague would get nowhere.

A: Hearing the colleague whispering, the author _ .
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Q: Article: When Pat Jones finished college, she decided to travel around the world and see as many foreign places as she could while she was young. Pat wanted to visit Latin America first, so she got a job as an English teacher in a school in Bolivia. Pat spoke a little Spanish, so she was able to communicate with her students even when they didn't know much English. Once, A sentence she had read somewhere struck her mind: if you dream in a foreign language, you have really mastered it. Pat repeated this sentence to her students and hoped that some day she would dream in Spanish and they would dream in English. One day, one of her worst students came up and explained in Spanish that he had not done his homework. He had gone to bed early and had slept badly. "What does this have to do with your homework?" Pat asked. "I dreamed all night, Miss Jones. And my dream was in English." "In English?" Pat was very surprised, since he was such a bad student. She was even secretly jealous . Her dream was still not in Spanish. But she encouraged her young student, "Well, tell me about your dream." "All the people in my dream spoke English. All the newspapers and magazines and all the TV programs were in English." "But that's wonderful," said Pat. "What did all the people say to you?" "I am sorry, Miss Jones. That's why I slept so badly. I didn't understand a word they said. It was a nightmare ".
Answer: dreaming in a foreign language means a good command of it

A:
Pat believed that _ .
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