Article: My name is Lydia. I come from Beijing. I'm a Chinese girl. This year my parents work in London. Do you know London? It's a big city in England. My parents teach Chinese in a school. I'm in the same school with them. I'm in Class Four, Grade Seven. My teachers are nice to me. I can play football and swim. Sally is my sister. She lives in Beijing with my grandparents. She studies in a primary school . She is in Class Three, Grade One. She likes singing. But she can't sing English songs well. I often write to her, but she can't. I _ her very much. Question: What class is Sally in? Yes or no, is the answer "Class Three, Grade One."?
Yes

Article: I will never forget my first English class. It is very interesting. It's the first class in the morning. The teacher goes into the classroom with a smile on his face. At the beginning, he makes a self-introduction . And he tells us that his English name is John. Then he asks all of us to think of English names for ourselves. We are very excited to find a good name. Then he asks us to write our names down on a piece of paper. I think about my English name for a long time. Then I come up with a beautiful name ---Shirley. All the students write their names down and give the paper to the teacher. When the teacher calls "Shirley" to answer his question, three girls stand up at the same time. Question: What does our teacher do first? Yes or no, is the answer "He introduces himself to all of us."?
Yes

Article: Old Cremona Violins Most musicians agree that the best violins were first made in Cremona, Italy, about 200 years ago. These violins sound better than any others. They even sound better than violins made today. Violin makers and scientists try to make instruments like the Italian violins. But they aren't the same. Musicians still prefer the old ones. Some people think it is the age of the violins. But not all old violins sound wonderful. Only the old violins from Cremona are special . So age cannot be the answer. Other people think the secret to those violins is the wood. The wood must be from certain kinds of trees. But the kind of wood may not be so important. It may be more important to cut the wood in a special way. Wood for a violin must be cut very carefully. It has to be the right size and shape . The smallest difference will change the sound of the violin. Musicians sometimes think that this was the secret of the Italians. Maybe they understood more than we do about how to cut the wood. Size and shape may not be the answer, either. Scientists can make new ones that are exactly the same size and shape. But the new violins still do not sound as good as the old ones. Some scientists think the secret may be the varnish. Varnish is what covers the wood of the violin. It makes the wood look shiny. It also helps the sound of the instrument. But no one knows what the Italian violin makers used in their varnish. Question: Violins made today _ . Yes or no, is the answer "have the same size and shape as the old ones"?
No

Article: Now cities are full of cars. Some families even have two or more cars. Parking is a great problem, and so is the traffic in and around the cities. Something will have to be done to change it. What will the cars of tomorrow be like? Little cars may some day take the place of today's big cars. If everyone drives little cars in the future, there will be less pollution in the air. There will also be more space for parking cars in cities, and the streets will be less crowded. Three little cars can fit in the space now needed for one car of the usual size. The little cars will cost much less to own and to drive. Driving will be safer, too. What is more, these little cars can go about 65 kilometers per hour. Little cars of the future will be fine for getting around a city, but they will not be useful for long trips. If big cars are still used along with the small ones, two sets of roads will be needed in the future. Some roads will be used for the big, fast cars, and other roads will be needed for the slower small ones. Question: The big cars are _ the little cars for long trips. Yes or no, is the answer "more useful than"?
No