问题
选择题
It was President Xi Jinping ________ visited the navy troops and urged to strengthen naval force on April 9,2013.
A．when
B．which
C．that
D．he
答案
答案：C
选C 考查强调句型。分析句子结构可知，此处是强调句结构“It was ... that ...”，对句子的主语进行强调，故选C项。