This is the man_,the artist said posed as a model for the painting.中间空格为什么填WHO,
问题描述：
This is the man_,the artist said posed as a model for the painting.中间空格为什么填WHO,
答
可以把这个句子分解一下来理解,因为里面包含两个定语从句.This is the man.This is the man (who posed as a model for the painting).This is the man (who [the artist said]posed as a model for the painting)....