"looked worry"还是"looked worried"?

looked worry还是looked worried? She looked very___(worry). 关于worry的一道题The ________ (worry) mother looked at her________ (worry) son,looking _______(worry). what happened to cathy she looked so(worry) The woman looked (Worry)because she couln'tThe woman looked (Worry)because she couln't find her car the little girl got the door open with some ______(difficult)到底是用单数还是复数呢?有什么要求吗?还有the girl looked worried ,but nobody understands her _____(worry)用单数还是复数 worry about she还是her be worry还是be worried He feels worry还是worried? worry在句末用什么形式 例句 ：He looked very ＿＿＿＿ A worry B worries C worried 担心某人,英语是:worry about sb还是 worry sb Don't worry 还是Don't worry about.为什么? Don`t be worry 还是Don`t worry? worry i don't know why he looked worry all day long.________ worry后面是跟to还是about worry about的用法：后面加ing还是原型（worry about doing还是worry about do） He looked（）.What happened to him? A.worry B.worriHe looked（）.What happened to him?A.worryB.worriedC.worryingD.worries