这个过去分词和现在分词题怎么做为啥?

问题描述:

这个过去分词和现在分词题怎么做为啥?
what surprised me was to see some of the village people_on the beaches at the end of the room
a seating b seated c seat d to be seating

正确答案:
B seated
或者说sitting
seat:使..人就座; 和sit使用起来有一定区别,要用被动.
What surprised me was to see some of the village people seated/sitting on the benches at the end of the room.
p.s.根据上下文,题目中beach(海滩)应该改为bench(长凳).