问题
选择题
Oil prices have risen by32 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
答案
答案：B
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。