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

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• 1_____ 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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• 2Mr. Johnson starts to work very early in the morning and goes on working until late in the afternoon _____ a break at midday.

  A.with

  B.for

  C.as

  D.through

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• 3--- Tang Gonghong is indeed too large, I think. --- But _____ that she is an excellent weight-lifting athlete.

  A.in addition to

  B.in spite of

  C.thanks to

  D.owing to

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• 4I began to feel _____ in the new school when I saw some families faces.

  A.at home

  B.at heart

  C.at will

  D.at sight

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• 5Heilongjiang Province is _____ north of Liaoning. Harbin, its capital city, lies _____ the Songhuajiang River.

  A.to; on

  B.in the; in

  C.不填; on

  D.to the; in

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• 6Vitamin 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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• 7I 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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• 8I 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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• 9Edison had built a chemical lab of ______ when he was very young.

  A.himself

  B.him

  C.itself

  D.his own

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• 10His explanation can't be accepted _____ satisfactory.

  A.as being

  B.like being

  C.as having

  D.like

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