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The universe began with the Big Bang 13.7 billion years ago, with everything in

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The universe began with the Big Bang 13.7 billion years ago, with everything in

The universe beganwith the Big Bang 13.7 billion years ago, with everything___ in space smallerthan a grain of sand.

  A.started          B. starting         C. to start        D. to be started

 

试题答案

【答案】

B

【解析】略