John’ssuccesshasnothingtodowithgoodluck.Itisyearsofhard...

问题详情：

John’s success has nothing to do with good luck. It is years of hard work _____has made him what he is today.

  A. why                    B. that                 C. when             D. which

【回答】

B

知识点：连词

题型：选择题