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35. Traffic restrictions have come into effect in Beijing    to improve the capital’s air quality and traffic situation for the 2008 Olympics.

   A. in order that  B. in an attempt   C. at an attempt  D. in a try

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34. Platypus is a  strange animal that lays eggs but     milk     its young.

  A. feeds;to   B. feeds;for   C. fed;at   D. fed;on

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33. Polar bears live    on sea ice,which they use as a platform for hunting seals.

   A. most    B. almost    C. nearly   D. mostly

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