input: Please answer the following: Write a multi-choice question for the following article: Article: Mary Cassatt was born in Pennsylvania in 1844. When she was seven, her family moved to Europe. They wanted their children to understand European ways and the people who lived there. They travelled a lot and she had visited many countries by the time she was 10 years old. After four years they returned to America. In those days, women didn't have professions, and there were very few women artists. Her family did not approve when she decided that she would become an artist. She studied first in Philadelphia. She happened to be in Chicago in 1871 when the huge fire broke out there. She lost many of her paintings in that fire. She went to Paris to study painting. She met Camille Pissarro there. He taught her Impressionism, a method of painting where the artists used small strokes of unmixed color1s to create an image. She once said of Pissarro that " _ " because he was such a good teacher. She spent a lot of time at the Louvre Museum copying paintings of the famous artists. In 1874, her sister, Lydia, came to live with her in Paris. Lydia was her best friend and posed for many of Mary's paintings. Three years later, her parents came to Paris, also to live with them. Lydia became very ill and died from a disease. Mary missed her very much. Her parents became elderly and she cared for them, but she still found time to paint. One of the more interesting works of Mary Cassatt is her painting, Portrait of Mrs. Curry, Sketch of Mr. Cassatt. Though she never had children of her own, she loved children and painted portraits of the children of her friends and family. She became known as the painter of mothers and children. She lost her sight due to cataracts in her eyes in 1914 and was not able to paint during the later years of her life.
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output: Question: Why did Mary Cassatt's family move to Europe when she was seven years old?Options:A The family planned to make a living there.B The family wanted to visit some European artists.C The family took their children to study art.D The family wanted their children to learn about Europe.Answer:D

input: Please answer the following: Write a multi-choice question for the following article: Article: The Internet began in the 1960s as a small network of academic and government computers primarily involved in research for the prefix = st1 /U.S.army. Originally limited to researchers at a handful of universities and government departments, the Internet has quickly become a worldwide network providing users with information on a range of subjects and allowing them to purchase goods directly from companies via computer. By 1999, 84 millionU.S.citizens had access to the Internet at home or work. More and more Americans arc paying bills, shopping, ordering airline tickets, and purchasing stocks via computer over the Internet. Internet banking is also becoming increasingly popular. With lower overhead costs in terms of staffing and office space, Internet banks are able to offer higher interest rates on deposits and charge lower rates on loans than traditional banks. "Brick and mortar" banks are increasingly offering online banking services via some special websites to enlarge their traditional services. At present, 14 percent of Internet households conduct their banking by means of the Internet, and the figure is expected to double during the next two or three years. Increasing commercial use of the Internet has heightened security and privacy concerns. With a credit card, an Internet user can order almost anything from an Internet site and have it delivered to their home or office. Companies doing business over the Internet need many security measures to protect credit card, bank account, and social security numbers from unauthorized access as they pass across the Internet. Any organization that connects its networks to the global Internet must carefully control the access point to ensure that out-siders cannot disturb the organization's internal networks or gain unauthorized access to the organization's computer systems and data.
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output: Question: Which commercial usage of the Internet does the author NOT refer to?Options:A Buying airline tickets.B Trading stocks.C Applying for a credit card.D Internet shoppingAnswer:C

input: Please answer the following: Write a multi-choice question for the following article: Article: Some wonderfully creative uses of X-rays have been in the world of art.But the most impressive one is to uncover what has been covered up.Details unfolded by an X-ray of a painting can ' t be seen any other way.For example, in the past, paintings were often repaired if small pieces of paint fell off the canvas . These repairs cannot be seen just by looking at the painting.It takes an X-ray to discover where the repairs have been made. An X-ray of a painting is one of the best ways to tell if it was created by a famous painter or if it is a forgery .If there is a question as to whether an old master has painted a certain painting or not, X-rays are made and compared to those of paintings that are known to be original.If the brushstrokes , for example, are shown to be totally different than in other work done by a certain artist, then the painting is proved to be a fake copy. Since modern paints are usually made from different materials than paints of hundreds of years ago, the image they leave on an X-ray film looks different.This is another way X-rays can be used to spot a forgery.A modem artist will try to make a forgery look hundreds of years old by painting dirty varnish on it or by using artificial means to get the varnish to look cracked.To the naked eye the forgery may look old, but when a careful study of the X-ray image is made, the _ is obvious. It was common many years ago for an artist to finish a painting, decide it wasn't any good, and paint a completely different picture on top of it.Or artists would paint over others' work --it was their version of recycling.Taking an X-ray is the only way to find out if there is a picture underneath the picture you see with your eyes.Sometimes museums will be more interested in the painting beneath than the one on top, and will restore the older one by having the top layer painstakingly removed.
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output:
Question: According to the passage,X-rays are used to _ .Options:A make repairs on paintings in the pastB identify the authenticity of an artworkC change the materials of a forgeryD remove the recyclable paintsAnswer:B