at the party, I found Tina seated alone in the front row.
A. Arriving
B. To arrive
C. Arrive
D. Arrived
网友回答
(答案→)A. Arriving
B. To arrive
C. Arrive
D. Arrived
解析：
试题分析:考查非谓语用法。由结构分析可知，句中没有连词，所以逗号前是状语，故排除C选项。主句主语I 和前面动词arrive 之间是主动关系，所以用现在分词表示主动，正确答案是A。句意：一到聚会上，我就发现蒂娜独自坐在前排。