问题补充:
It was President Xi Jinping visited the navy troops and urged to strengthen naval force on April 9, .
A. when
B. which
C. that
D. he
答案:
A. when
B. which
(答案→)C. that
D. he
解析:考查强调句:句意:是习近平主席在四月九号参观了海军,要求他们加强海军的力量。这是强调句。强调句的结构是:It is/was+强调部分+that+其余部分,判断是否是强调句的标准是把强调句结构去掉,这句话仍然成立。所以选C。