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精英家教網 > 高中英語 > 題目詳情

70 percent of the surface ________ water.


  1. A.
    is covered with
  2. B.
    cover with
  3. C.
    are covered with
  4. D.
    covers with
A
解析:
【巧解導析】“百分數+of+不可數名詞”,謂語應用單數動詞.也就是說,百分數作主語時謂語動詞要看它后面的名詞是不可數名詞還是可數名詞復數.如果是不可數名詞則用單數動詞,如果是可數名詞復數則用復數動詞.
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