How _____ these students are listening to their teacher!A.careful_英语解答

How _____ these students are listening to their teacher!
A.careful B.careless c.carefully D.care
我知道答案是C,为什么要选那个,我想不通,

人气：404 ℃　时间：2019-11-19 12:06:30

解答

空格里的词是修饰listening to的,也就是修饰动词的,只有副词是修饰动词的,四个选项只有C是副词,因此选C.