By the time he realizes he ___ a chance,___ it'll be too late for him to
问题描述:
By the time he realizes he ___ a chance,___ it'll be too late for him to
By the time he realizes he ___ a chance,it'll be too late for him to do anything about it.
A misses B missed C has missed D had walked
答
C has missed
他意识到自己已经错过了一个机会
这里的错过与意识到相比是完成的状态
所以现在完成
如果用realized那就得用过去完成了