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Oil prices have risen by32 percent since the start of the year,_____a record US $57.65 a barrel on April 4.


  1. A.
    have reached
  2. B.
    reaching
  3. C.
    to reach
  4. D.
    to be reaching
B
解析:
分词做结果状语,不能选C,因为不定式作为原因和结果状语时候不能放句子开头。
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