[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: Three kids have been learning chemistry for only a few months. But they have already begun to challenge a world famous scientist! Li Weichi, Huang Runling, and Xiao Yan are from Zhongshan Huaqiao Middle School in Guangdong. They have just found a red cabbage that could be a new kind of acid-base indicator . They want it to take the place of litmus paper. "We've learnt to think of and ask questions about life by ourselves," said Li, "We work well with each other." British scientist Robert Boyle discovered the use of litmus paper over 300 years ago. Now it is used widely in experiments all over the world. But when the kids did some experiments in class last winter, they saw that the litmus paper didn't turn very blue with base matter. It's hard to get a clear result. Will there be a better indicator than litmus paper? The three kids decided to try and find out! How? They went to collect over 40 plants in parks, gardens and markets. Then they ground leaves, flowers and stems to get the pigments from them. The kids mixed pigments with acid and base. They spent months watching carefully to see which paper showed the best colour change. They decided it was the litmus paper! "It's our first scientific journey, Huang said, "But it makes me want to try harder." Options: A how to make litmus paper B about the three kids' spirit C scientists were wrong D the kids are heroes Answer: B about the three kids' spirit Question:
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[A]: The story mainly tells us _ .

[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: Brush your teeth every day, dentists say. In the south of Africa, some people brush their teeth all day long. They keep a small stick in their mouth to chew or scrub their teeth all day. People cut the sticks from trees. They are the African toothbrushes. People there are used to brushing their teeth with sticks. Africans think the sticks work better than toothbrushes. The sticks come from nature, and it is said that there is something special about them. The special thing may stop many kinds of tooth problems. "If you have a bad tooth, it is a medicine," said Diop, a seller in Africa. The sticks are also much cheaper than toothbrushes. In Senegal ,the chewing stick is called "sothio". It means "to clean" in their language. In east Africa,the stick is called "mswaki". It's their word for "toothbrush". Even the dentists agree that the sticks seem to clean teeth better. Nowadays, some nice health stores in the United States start to sell chewing sticks. They think that the stick is natural kind of tooth care. Options: A The Africans. B The Americans. C The Chinese. D The dentists. Answer: A The Africans. Question:
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[A]: Who brushes teeth with sticks first according to the passage?

[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: My name is Lucy. I come from America. I am now in China. I study in Hangzhou Shulan Middle School. There are many clubs in our school. They are an English club, an art club, a music club, a ball game club, a swimming club, a chess club and a computer club. There is a "Show Yourselves !" Festival in our school every year. On that day, students from different clubs show their talents in different ways. They can sing English songs, draw and paint beautiful pictures. They can play the guitar, the violin, the piano, and the trumpets. They can also play chess and show us their swimming skills. They like the festival very much. I join the art club, and I paint the ads for them . Giving help makes me happy. Options: A singing English songs B painting nice pictures C playing beautiful music D showing their drawing skills Answer: B painting nice pictures Question:
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[A]: The students from the art club show their talents by(......) _ .

[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: In Britain, people usually begin their talks with weather. For example, they will say"It's a fine day, isn't it?""Do you think it will rain?" Many people believe that they are able to tell what the weather will be like. But they never agree with each other. One man may say, "How cloudy it is now! It's going to rain." Another man will say, "No, it's going to be fine later." People always hope the weather they want. For example, when a farmer needs water, he looks for something to tell him it's going to rain. When a man wants to travel, he is sure the weather will be fine quickly. Now almost everyone listens to the weather report. It doesn't always tell us the weather we want, it only tells us what the weather will be like. But sometimes it makes mistakes . ,. Options: A sports B music C weather D Culture Answer: C weather Question:
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[A]:
The passage mainly tells us something about _ .