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Oil prices have risen by 32 percent since the start of the year, _____ a record US$57,65 a barrel on April 4.

A. have reached   B. reaching   C. to reach   D. to be reaching

B

解析:本題考查非謂語動詞的用法。此處作結果狀語。V-ing形式作結果狀語表順其自然的結果,且常常前面用逗號與主句隔開;to do sth.往往表示出乎意料之外的結果,且多數不用逗號與前面的主句隔開。此處是自然的結果,故用v-ing形式作狀語,大意是“結果達到了每桶57.65美元”。

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