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    ( ) 70% of the earth covered with water. A. are B. is C. were D. being 【查看更多】

     

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    70% of the earth _____ covered with water.
    [     ]
    A. are
    B. is
    C. were
    D. being

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    70% of the earth _______ covered with water.
    [     ]
    A. are 
    B. is 
    C. were 
    D. being

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