Hong Zhanhui never gives up trying. It is the love and responsibility has driven him to go through hardships and survive in life.
A. what
B. which
C. who
D. that
网友回答
A. what
B. which
C. who
(答案→)D. that
解析： 考查强调句结构。被强调的是主语the love and responsibility，因此，空白处应填上that。