The passage is mainly about __________.

试卷相关题目

• 1When a star__________  .

  A.turn into a ball

  B.suck in everything

  C.get smaller and smaller

  D.become darker and darker

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• 2From the passage we know a black hole is __________.

  A.a huge hole in the universe

  B.a group of stars packed together

  C.a dead star that is packed tightly

  D.complete silent darkness in space

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• 3How many key ways can help you when this kind of event happens、

  A.Three.

  B.Four.

  C.Five.

  D.Six.

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• 4You have to fight

  A.when you see the shooter

  B.if evacuation is impossible

  C.only if your life is in danger

  D.when you are with your friends

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• 5When you find a place to hide, you should_______________.

  A.call 110

  B.silence your cell phones

  C.fight with the shooter

  D.leave your things behind

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