问题
选择题
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
答案
答案：B
从句意来分析， 主句部分表示油价上涨了百分之三十二，逗号后面的内容为油价上涨后的必然结果“达到……记录” 。