He has worked ______ the maths problem for nearly an hour but he simply can't work it ______ .

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• 1The report was not concrete and in a way lacked persuasion, but ______, I felt it is fair.

  A.above all

  B.in others words

  C.on the whole

  D.on average

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• 2We have brought in a good grain harvest for three years_________.

  A.on purpose

  B.on end

  C.on duty

  D.on watch

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• 3In the worst-affected regions, many areas remain in chaos(混乱), with roads inaccessible, public transportation at a total stop and power and telecommunication networks completely ______.

  A.out of service

  B.out of place

  C.out of control

  D.out of sight

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• 4We shouldn't judge a student only________ how good his or her marks are in the exam.

  A.in face of

  B.in need of

  C.in terms of

  D.in the area of

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• 5Apart from being good at teamwork, he is tall, strong and athletic. _______, he is the best choice for the coming basketball match.

  A.All in all

  B.In addition

  C.After all

  D.By the way

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• 6— ______ no means shall we let out the secret. —No, ______ no case shall we.

  A.In; in

  B.By; with

  C.In; by

  D.By; in

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