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There _____ be a few showers,_____ bring an umbrella with you.

  A.may,because

  B.may,so

  C.might,because

  D.is,so

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Three kids have been learning chemistry for only a few months. But they have already begun to challenge (挑战) 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 (酸碱指示剂). They want it to take the place of litmus (石蕊) 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.
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"It's our first scientific journey, Huang said, "But it makes me want to try harder."
【小题1】 Whom did the three kids want to challenge?
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C.Robert BoyleD.Thomas Edison
【小题2】 From the text, a red cabbage is a kind of ____.
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C.any plantD.any flower
【小题4】The story mainly tells us ____.
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C.scientists were wrongD.the kids are heroes

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