the old man looked( )at the news and looked ( )at the picture of his lost son.A.sadly;sadB.sad;sadly选哪个?为什么?我要知道为什么，前后有什么区别.为什么前面是系动词，不能后面是系动词？

The old man looked ________at his_______grandsonhappliy sicksadly sickhappily illsadly ill The old man looked at his son ______(angry) The old man looked ________with the school report of his son in his hand.(angry,angrily) The old man needs _____.A.to look after B.looking after C.being looked after D.looked after After the old man r_____ ,he looked after his grandson every day怎么填 After the old man r( ),he looked after her grandson every day. Once an old man went to see a doctor.The doctor looked him over carefully a The man looked very sick. The old man looked _______ after he hearing the bad news.A.angry B.angrily C.anger D.at angry The old man looked as_____as he could at the letter from his son and looked _____(care)用所给词的正确形式填空 the old man born! The old man looks ( )is the old man? ( )is the old man? The old man looked after sheeps 哪里错了The old man looked after sheeps 这个句子有一个选项有错误————— ——— —— ———A B C D It seemed that the old man ___for something over there eIt seemed that the old man ___for something over thereA looks B looked C was looking D has looked the old man in blue coat ____.A.look worried B.looks worriedC.looked worries D.looks worrying Once an old man went to see a doctor. The doctor looked him over carefully and said,“ Medicine won