问题
选择题
John’s success has nothing to do with good luck. It is years of hard work _______has made him a great scientist today.
A．that
B．when
C．which
D．why
答案
答案：A
这题考查强调句的用法：It’s+强调部分+that…,这句话强调的是主语，years of hard work，句意是：约翰的成功和幸运无关，是多年的努力使他成为伟大的科学家。选A。