He was________ill last week.(terrible/terribly)

问题描述:

He was________ill last week.(terrible/terribly)

He was___terribly_____ill last week.(terrible/terribly
修饰形容词应该用副词为什么?was是系动词,不是要用adj修饰吗?这里的terribly 是修饰后面的ill 的,不是修饰前面的be 动词