这个为什么是宾语从句 he looked just as he had looked ten years before

有关英语从句的问题He looked just as he had looked ten years before.中的 He looked as if he had just stepped out of my book of fairy he has looked after this old man for ten years(同意句） he has _ After ten years ,he changed a lot and looked different from He looked as if he had lost a pound and found twenty pence 为什么这个句子 He looked as if he hadn't washed for a days .中look要加 my boyfriend looked as if he had been ill for a long time It looked as if he had understood this question.的语法 He is not such a fool as he is looked. He looked so 急用. He looked _________ He told me that he had lived in America for ten years before