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(yǔ)動(dòng)詞的用法。此處作結(jié)果狀語(yǔ)。V-ing形式作結(jié)果狀語(yǔ)表順其自然的結(jié)果，且常常前面用逗號(hào)與主句隔開(kāi)；to do sth.往往表示出乎意料之外的結(jié)果，且多數(shù)不用逗號(hào)與前面的主句隔開(kāi)。此處是自然的結(jié)果，故用v-ing形式作狀語(yǔ)，大意是“結(jié)果達(dá)到了每桶57.65美元”。

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