Tom looked _________(unhappy/sadly)at the bad news.sadly是副词吗

Tom looked _________(unhappy/sadly)at the bad news.sadly是副词吗 he looked sad at the news 为什么不是sadly The bad news made us sad为什么不用sadly When he looked _____ at the picture ,he looked _______(sadly The bad news made them very（ ）填sadly还是填sad 英语语法问题：The children all looked sadly at the broken model pla look sadly at the boy和look sad at the news so sad did she look at the news 这里为何不用sadly?she looks at the they all looked sadly at the dying man and felt very_____. 为什么这样写looking sadly at his mother,the litter boy looked sad they all looked sadly at the tea cher and felt quite sad 这个中 He looked-------(happy)at the bad news.