Write a multi-choice question for the following article, with the given choices and answer: Article: The earth is not the only body that travels around the sun. With it are eight other planets, fellow members of the sun's family. Two of them, Mercury and Venus, are nearer while the other six, namely Mars, Jupiter, Saturn, Uranus, Neptune and Pluto, also in their given order from the sun, are farther from the sun than the earth is. The farther they are, the longer trips they make around the sun. People noticed long ago that these traveling bodies moved around in the sky in definite paths. It is a force called gravity that holds them in their paths. We know that every little bit of matter in the universe pulls upon every other bit of matter. The pull between two bodies is proportional to the product of their masses. Because the sun is so large the pull between the sun and the planets are thus great. If it were not for this pull, the planets would fly off into space. In the same way there exists a pull between the earth and the moon, which keeps the moon traveling in its orbit around our planet, the earth. Gravity holds you to its surface, and pulls back to it the ball which you throw into the air. Of course the ball also pulls on the larger earth but the earth is so much larger that the pull is not noticed. Now remember that large bodies exert a greater pull than smaller ones which contain less material. But each object in the universe, no matter how small, pulls on all other objects to some degree. Options: A all the objects, big or small, must exert the same pull on one another B large objects exert the same pull on anybody as small objects C small objects exert the same on large ones D each object in the universe exerts a pull on all other objects Answer: D each object in the universe exerts a pull on all other objects Question:
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Answer: From the passage we can see _

Q: Write a multi-choice question for the following article, with the given choices and answer: Article: Five years after a deadly earthquake and tsunami hit Japan, recovery remains years away. More than 16,000 people died in the disaster and more than 470,000 were removed from their homes, says the Japanese Red Cross Society. Over 2,500 people are still missing and predicted dead. After pressure from survivors, the Japanese Coast Guard began underwater searches for the missing. In Fukushima, more than 100,000 families still cannot return home, says the Red Cross Society. This is because of radioactive pollution from the damaged Daiichi Nuclear Power Plant. In Japan, the disaster is known as "3-1-1" , marking the date five years ago. It was really three disasters rolled into one. "It started with an earthquake devastating in itself, then the tsunami, and then the radiation from the nuclear plant," said Shioko Goto, a Japan expert at the Wilson Center in Washington, D.C..Goto said the disaster showed the world, "Japanese resilience and Japanese unity." But it also showed shortcomings. Among the most notable, the long time it took to stabilize the Fukushima Daiichi Nuclear Power Plant after it was flooded from the tsunami, Goto said. That process took eight months. Another, Japan's dependence on nuclear power, she said. The disaster forced Japan to close all of its nuclear power plants, leaving parts of the country without electricity. Goto offered up one major difference from the last major Japanese disaster, the 1995 Kobe Earthquake. In 2011, social media was everywhere, she said. Social media offered up plenty of "unfounded rumors and fear-mongering ," Goto said. But it also kept pressure on Japanese authorities to do more. Chikara Yoshida lost his only son, a 43-year-old volunteer fireman, on March 11, 2011. He and his daughter posted a petition on Facebook to restart underwater searches. It drew over 28,000 signatures, according to the Associated Press. The Japanese Coast Guard announced that it would resume searches this week. There have also been complaints that reconstruction efforts in hard-hit... Options: A In Fukushima, more than 10,000 families still cannot return home. B The disaster forced Japan to close most of its nuclear power plants. C Japanese authorities were forced to do more after the disaster. D Chikara Yoshida and his daughter posted a petition on the Associated Press. Answer: C Japanese authorities were forced to do more after the disaster. Question:
A: Which of the following statements is true?

Write a multi-choice question for the following article, with the given choices and answer: Article: On Nov.18th,1908,three men went up in a balloon .They started early in London. The headman was Auguste Gaudron,and the other two men were Tannar and Maitland. They had a big balloon and they were ready for a long way. Soon they heard the sea. They were carrying the usual rope ,and it was hanging down from the basket of the balloon. At the end of the rope they had tied a metal box. This could hold water, or it could be empty. So they were able to change its weight .It was for use over the sea. They were also carrying some bags of sand. After the sun rose, the balloon went higher. It went up to 3,000 metres, and the air was very cold. The water in the balloon became ice. Snow fell past the men's basket, and they could see more snow on the ground. The men tried to throw out some more sand; but it was hard. They tried to break the icy sand with their knives, but it was not easy. The work was slow and they were still falling, so they had to drop some whole bags of sand. One of them fell on an icy lake and made a black hole in the ice. At last they pulled the box into the basket. It was still snowing; so they climbed to get away from the snow. They rose to 5,100 metres! Everything became icy. They were so cold that they decided to land. They came down in Poland heavily but safely. They had traveled 1,797 kilometers from London! Options: A carrying the bags of sand' ' B keeping drinking-water C carrying ropes of the basket D changing weight Answer: D changing weight Question:
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Answer:
The metal box was used for _ .