ThisracewentonforexactlyfourmonthsThisrace,whichwentonforexactlyfourmonths,wasthelastofitskind.exactly的成分和作用是什么为什么不能用exact作形容词修饰后面的fourmonths

Question

This race went on for exactly four months
This race,which went on for exactly four months,was the last of its kind.
exactly 的成分和作用是什么
为什么不能用exact作形容词修饰后面的four months

Answer 1

for exactly 作状语,准确来说,用来修饰前面的动词went on