关于：主谓一致
问题描述：
关于：主谓一致
1.The sale usually takes place outside the house,with the audience_______on benches,chairs or boxes.
主语是the audience,为什么是seated?不是seating?
2.______in this way,the situsation doesn't seem so disappointing.
为什么是looked at?
我觉得是looking at（句首）
答
1、seating只有seating oneself 这一种用法,除了这一种,其余表伴随都用seated
2、主语与动词是主动关系时才用ing形式,look at 的主语是人,情景只能被看,所以是looked at