_______ we know, in a chemical change, energy cannot be created, ________.

试卷相关题目

• 1In front of me _______, where many athletes from all over the world will compete for Olympic gold medals.

  A.stands the Water Cube

  B.stand the Water Cube

  C.the Water Cube stands

  D.does the Water Cube stand

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• 2I will never know what was on his mind at the time, nor will _______.

  A.anyone

  B.anyone else

  C.no one

  D.no one else

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• 3________ got out of his house ________ it began to min.

  A.Mr Brown had hardly; than

  B.Mr Brown had no sooner; when

  C.No sooner had Mr Brown; than

  D.Hardly Mr Brown had; when

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• 4Light waves are electromagnetic, ________ are radio waves.

  A.same

  B.such

  C.so

  D.as

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• 5Through the window ________.

  A.came was fresh air

  B.had come fresh air

  C.fresh air had come

  D.came fresh air

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• 6Uncle Jesse, why ________ to be poor people like those?

  A.does it have

  B.has it

  C.do there have

  D.do it have

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• 7Mary sings English songs well and ________.

  A.Jane does too

  B.either does Jane

  C.so Jane does

  D.so does Jane

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• 8Only ________ the exercises by the time the class was over.

  A.had Jim finished

  B.Jim had finished

  C.did Jim finished

  D.Jim has finished

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• 9Never before ______ to ______ what his parents expect of him more than it is today ．

  A.he has failed; live up to

  B.he failed not; come up with

  C.has he failed; live up to

  D.did he failed; come up with

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• 10________ when they could do what they liked to Chinese people．

  A.The days are going

  B.Gone are the days

  C.Going are the days

  D.The days have gone

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