the boy was found seating at the cornor of the street alone"

題目：

the boy was found seating at the cornor of the street alone"

解答：

兩種改法.一是seating改爲sitting,二是seating改爲seated.
find sb do/doing/done.本題考查賓補變主補.the boy 和sit是主謂關系所以用sitting,the boy和seat之間是動賓關係,所以用seated,seat的意思是「使/讓.坐」.