They had just taken their seats, then
A. the chairman came
B. the chairman es
C. came the chairman
D. es the chairman
网友回答
A. the chairman came
B. the chairman es
(答案→)C. came the chairman
D. es the chairman
解析：考查倒装结构。副词then放在句首，用完全倒装句，根据时态可知用一般过去时，选C。