来个英语语法高手~It has been _____a year since we last heard from him.

问题描述:

来个英语语法高手~It has been _____a year since we last heard from him.
It has been _____a year since we last heard from him.
A.for B.within C.after D.over
这是高中语法书上的历年真题 翻译为 自从最后一次收到他的信已经一年多了.
问:为什么A不可以?for+一段时间不是典型的现在完成时的时间状语吗?翻译为自从最后一次收到他的信已经有一年了.

你说的没错for是可以加一段时间,比如He has been taken to the hospital for 5 days.但前提是主语不是时间,而这句话的主语是时间.It has been over a year since we last heard from him.自从我们最后一次收到他的来信,已经有一年多了.