surprised me most was to see some of the villagers on the benches in the corner.
A. What , seated
B. That ; seated
C. That; seating
D. What, seating
网友回答
(答案→)A. What , seated
B. That ; seated
C. That; seating
D. What, seating
解析：这里主语从句须用what引导, 如用that就缺少主语; seating为及物动词的分词.