Edison had built a chemical lab of ______ when he was very young.

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• 1I don't think I'll need any money but I'll bring some ________.

  A.as last

  B.in case

  C.once again

  D.in time

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• 2I left for the office earlier than usual this morning _____ traffic jam.

  A.in line with

  B.in case of

  C.for the sake of

  D.at the risk of

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• 3Vitamin D helps our bodies make a special chemical,and this special chemical, ____ , affects our brains,making us feel happy.

  A.in turn

  B.in particular

  C.in advance

  D.in short

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• 4Experts have been warning ______ of the health risks caused by passive smoking.

  A.at a time

  B.at one time

  C.for some time

  D.for the time

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• 5_____ sports teams, group work can only be successful when group members respect, help and support each other．

  A.As for

  B.As to

  C.As with

  D.As of

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• 6His explanation can't be accepted _____ satisfactory.

  A.as being

  B.like being

  C.as having

  D.like

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• 7Let's congratulate you ______ your success in every aspect of life and drink ______ it.

  A.on… to

  B.to….on

  C.to…..to

  D.on….on

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