------done for us?A what do you think he has B what do you t

A what do you think he has 主语从句,用陈述语序
再问： do you think 不是插入语啊，选b句子变为what has he done for us错在哪
再答： Do you think what he has done, 你的句子是把what提至句首变成了疑问句。