____ in a white uniform,he looks more like a cook than a doctor.(2005湖南)

问题描述:

____ in a white uniform,he looks more like a cook than a doctor.(2005湖南)
A.Dressed B.To dress
C.Dressing D.Having dressed
为什么选A?

因为如果补成一个句子是:He's dressed in a white uniform, dress 和he是被动的关系,被动的关系就要用过去分词