把主动语态改为被动语态Miss King saw Bill helping a blind man cross the street yesterday afernoon.
问题描述：
把主动语态改为被动语态
Miss King saw Bill helping a blind man cross the street yesterday afernoon.
答
Yesterday afternoon, Bill helped a blind man cross the road when Miss King seen.
答
Miss King saw a blind man is heiped crossing the street by Bill yesterday afternoon.
强调的是Miss king看到的动作，而不是Bill怎么样。
答
Bill was seen helping a blind man cross the street yesterday afternoon by Miss King