Not until _____,_______the difficult problem.

试卷相关题目

• 1＿＿____ when we passed by its nest.

  A.Up into the blue sky did the bird fly

  B.Up into the blue sky the bird flew

  C.Up into the blue sky flew the bird

  D.Flew up into the blue sky the bird

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• 2Mary opened the door. There______ she had never seen before.

  A.a boy did stand

  B.did a boy stand

  C.a boy stood

  D.stood a boy

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• 3I couldn't find Peter, ________ did I know where he had gone.

  A.but

  B.nor

  C.so

  D.and

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• 4Online shopping , when properly ________, can save a lot of time , money and energy.

  A.done

  B.is done

  C.having done

  D.doing

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• 5Only after he graduated _______ how much he loved his alma mater (母校) .

  A.he realized

  B.he had realized

  C.had he realized

  D.did he realize

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• 6So difficult ________ it to fit in at school that she decided to drop out.

  A.found she

  B.did she find

  C.she found

  D.she did found

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• 7Never before in China __________ so carefully concerned about the food safety.

  A.people have been

  B.have people been

  C.are people

  D.people are

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• 8________， he would have passed the exam.

  A.If he were to study

  B.If he studied hard

  C.Had he studied hard

  D.Should he study hard

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• 9I don't know if you noticed their absence or not, but we ________.

  A.did

  B.have

  C.had

  D.were

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• 10On the table _____ two dictionaries．You may look up the word in either of them．

  A.lie

  B.lays

  C.laid

  D.lies

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