________ Mary ________ Sue knows nothing about the matter, ________ they didn’t come to school yesterday．


  1. A.
    Either; or; because
  2. B.
    Both; and; as
  3. C.
    Neither; nor; since
  4. D.
    Not only; but; for
D
both…and…連接并列主語時，謂語應用復數(shù)，由第二個空后的knows可知B項錯誤；從后面的原因知道昨天她們沒來上學，其結果當然是對那事一無所知，因此答案為D項。
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