汗死……你看来完全没搞清楚副词的作用.
好吧,我们来分析一下句子：
这句话里有两个动词,一个是be,一个是need,别告诉我你认为exactly是用来形容be的.
其他例子：
I am usually working at that time.
He is insanely being loved by his wife.
I can hardly remember what happened.