问题
选择题
I don’t think his success has a lot to do with good luck. It’s hard work ______ has made him what he is today.
A．which
B．that
C．where
D．why
答案
答案：B
此题为强调句型，强调的是主语 hard work，that 为强调句型的标志，句意：就是努力工作使他成为今天的样子。所以选B。