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The Olympic Games are held ____________.

A. every four year                B. every fourth years

C. every four years                D. each fourth years

The Olympic Games are held ____________.

A. every four year                  B. every fourth years     

C. every four years                D. each fourth years

The Olympic Games are held_________

A. each four years                           B. every fourth years

C. every four years                           D. every four year

The Olympic Games are held ________.

A. each four years

B. every fourth year

C. every four years

D. each fourth years